Insufficient pressure in the water supply pipeline is a common phenomenon that owners of summer cottages often face. The situation is typical for an area where a water tower is used to meet the needs of the population. There are several options for solving the problem. It may be necessary to install a pump that increases the already existing pressure in the water supply system, as well as to carry out preventive maintenance of the water supply system.

Do you really need a booster pump

When deciding on the advisability of modifying water supply systems, several technical points are taken into account:

1. Is there water pressure in the water supply - the pump will only increase the already existing pressure. If the pressure is insignificant less than 1 bar, then the installation of one device is unlikely to help; a comprehensive solution to the problem is necessary.
2. What is the reason for the low pressure - the reason may be clogged filters, pipes overgrown with rust. Even after installing pumping equipment in such a system, it is unlikely that it will be possible to solve the problem of low pressure in the water supply system.

If, after carrying out inspection and preventive work to clean the filters and replace the littered risers, the pressure remains the same, they are looking for an alternative solution, install booster pumps for the water supply. It may be necessary to additionally install a tank for storing water or an automatic station that will maintain the pressure in automatic mode.

According to technical standards: for gas water heaters, a washing machine and a dishwasher, the water pressure in the water supply system is considered insufficient below 4 bar. This pressure is sufficient to ensure the normal operation of household appliances.

What pumping equipment to choose for water supply

For water supply systems, many different models of pumping equipment are produced. To facilitate the choice of a booster pump for a water supply, pay attention to the following criteria:

After determining with the choice of equipment for pressurizing the water supply system, proceed directly to the installation work.

Installation options

Perform general and spot installation. Each solution has its own pros and cons.

1. Common pump at home - vortex-type equipment is suitable for this purpose. The device is distinguished by high power and good performance. The device is installed on a central supply riser (booster pumps, with rare exceptions, are placed on cold water). Strapping is done. To increase the efficiency of the solution, it is recommended to install a storage tank of 100-200 liters in front of the pump.
2. Selective installation - in this case, the pump to raise the pressure in the water supply will increase the pressure for only one plumbing point: a gas water heater, a washing machine or a dishwasher, you can install the equipment on a shower, etc. For work, in-line pumps are used. This solution has its advantages. There is no need for piping, as in the case of connecting a vortex pump, and costs are reduced accordingly.

If the cause of the low pressure is the rusty risers, the water supply will not be enough to create pressure in the plumbing pump system. You will need to install an automatic station, with a built-in water storage tank. This option will completely solve all problems. The pumping station has only two drawbacks: high cost and the need to allocate part of the room for installation.

With the pressure of water, all leaks are detected in the system. To avoid unpleasant surprises when the pump is turned on after the equipment is inserted, the pipes are checked for tightness by pressure testing.

Expendable materials

The connection of the pump is carried out based on the material of the existing pipeline.

1. Metal - the module is mounted in the water supply system with rigid fixation. If the pipes are made of metal, the involvement of a welder will be required.
2. PVC - recently, plastic has been increasingly used for fixed connections. This option makes installation easier and shortens work time. The pump must be fixed with the help of American women. If necessary, the housing will be easy to remove later.
3. Another option for connecting a pump-pump to increase water in the water supply system is installation using flexible hoses. The same connections are used for taps at a sink or washbasin. Better not to use cheap hoses. If a breakthrough occurs, the switched on pump will pump water without stopping. Hose connections are suitable for temporary use before tapping the pump with metal or PVC.

If necessary, a pump can be connected to a metal water supply using PVC. For this purpose, a section of the pipe is cut out and with the help of a die, a thread is cut from both edges, a coupling is screwed on. By means of soldering, a pump is connected to increase the pressure, the work is carried out according to a previously thought out connection diagram.

Who should install the pumping equipment

Any changes in the water supply system inside a private house are the prerogative of its owner. Provided you have the right tool and the right skills to make the change, it shouldn't be difficult. The work will take about 2 hours.

As for a multi-storey building, utilities must do the modifications before wiring to the apartment. The pipeline entering the housing from the central riser, starting from the shut-off valve, can be repaired and modified by the owner. Of course, provided that the main technical parameters of the system do not change.

According to the existing law, it is possible to supply pumping equipment that will create a pressure not exceeding that specified in the documentation. If there are deviations from the norm upwards, this is punishable by a fine and the need to return the system to its original position, at its own expense. Considering that plumbers in an apartment are a fairly frequent phenomenon, it is not worth risking violations. It is better to ensure that the water pressure inside the pipeline complies with the standards prescribed in SNiP and GOST.

Installing a booster or booster pump on the water supply pipeline solves the problem of low water pressure. Taking into account all the nuances of the choice of equipment and performing installation without errors is within the power of professional plumbers with experience and appropriate admission.

A common problem in apartment buildings or private homes is a sudden drop in water pressure. With such jumps, the equipment is turned off, the water pressure is sometimes not enough even for minimal comfort, not to mention watering, washing, etc. To eliminate this risk, it is recommended to install a special pump to increase the water pressure. Let's consider the best offers from manufacturers so that the chosen option is the most optimal.

Varieties of pumps

The entire range of pumps for increasing water pressure is divided into two main types - with a wet and a dry rotor.

Wet rotor

They are used in heating systems with a short pipe length. The design includes a rotor with an impeller, which accelerates the circulation of water at speed. The fluid in which the rotor element moves, cools and lubricates the operating mechanisms.

When installing such a pressure pump for a water supply system, it is imperative to take into account the horizontalness of the shaft, its duration of the operating period depends on it. The advantages of equipment with a wet rotor are minimal noise, stepless speed regulation, reliability, durability and maintainability. Separately, users note the absence of the need for maintenance and an affordable price. Minus devices - low efficiency - up to 50%.

Dry rotor

This technique is used for heating systems with a long pipeline length. O-rings are located between the electric motor and the main functional area of ​​the rotor, which can last more than three years. Due to the design features, the rotor itself does not come into contact with the liquid. Plus dry pumps for increasing water pressure in a private house in high efficiency - up to 80%.

Dry rotor device

The second, no less significant disadvantage is a lot of noise during operation, so it must be installed in a separate room where there is good sound insulation. In addition, constant monitoring is required to ensure that there are no large solid particles in the water, and dust does not accumulate in the power unit. Otherwise, the tightness will be broken due to damage to the O-rings and the device will fail.

The best pumps for increasing water pressure with a wet rotor

The specificity of the device of "wet" circulation units is that the impeller is in the liquid, which they also pump. On the one hand, this fluid cools the engine, on the other, it lubricates it. Regardless of the material of the rotor shaft - ceramic or metal, they all have a high class of protection against damage and work with a minimum level of noise.

Grundfos UPA 15 90

The Danish device Grundfos UPA 15-90 N is equipped with a stainless steel case, an asynchronous motor, a flow controller, a terminal box. The stator and rotor are separated by a sleeve. During installation, the shaft is mounted horizontally.

Grundfos UPA 15 90

The Grundfos pump for increasing pressure operates at an automated level or in manual mode. Up to 1.5 m3 of liquid is supplied per hour, and the pressure is 8 m. The operating temperature varies from + 2 ° C to + 60 ° C. The minimum outlet pressure is 0.2 bar.

The model is energy efficient - up to 0.12 kW. During operation, emits a minimum noise level of about 35 dB. It is resistant to wear and corrosion. The working roller is made of composite, the shaft and bearings are made of aluminum, and the thermowell is made of stainless steel. The compact device is 160 mm long and weighs up to 2.6 kg.

Separately, the presence of protection against overheating and idling should be highlighted. For 5500-7000 rubles, the consumer will receive a compact booster pump of high build quality and with a simple installation system. In addition, the products are covered by a 3-year warranty. The disadvantage of the device is the costly post-warranty repair.

Wilo PB-201EA

German technology has always been in demand among domestic consumers. Vilo 20 is no exception. The electrical appliance is different:

• good performance - 3.3 m3 / h;
• a relatively large head of 15 m;
• economical consumption of energy resources - 0.34 kW.

The design features a durable cataphoresis-coated cast iron housing, a plastic wheel, bronze tubes and a stainless steel shaft. For the manual mode of operation, there is an option switch, and for the automated mode, there is a special flow force controller. The latter is connected to work at a flow rate of 2 liters per minute.

The pump for increasing the water pressure in the house has a sufficiently high nominal temperature up to + 80 ° C, but most importantly - a minimum of noise (41 dB). There are no corroded parts in the structure. The device provides a protective system against overheating and idling.

Installation of equipment is allowed only in a horizontal position with fixation to the base. The model has a fairly large dimensions of 220x180x240 mm, and the installation process is also complicated due to the weight of 7.5 kg. There is a pump to increase the water pressure in the apartment for about 8500-10200 rubles.

VIDEO: A trick with a water station in the house

The best dry rotor pumps to boost water pressure

In devices of the "dry" type, the motor does not come into direct contact with the liquid. On the one hand, this increases the efficiency almost 2 times, on the other hand, the operation of the electrical appliance is very noisy, which excludes its use in the house itself, and on the third, which is very important, the temperature range of the working fluid expands. Even at + 80 ° C, it can work for a long time.

Jemix W15GR15-A

The domestic-Chinese model is equipped with a durable cast iron housing, as well as a plastic rotating roller and a motor with an aluminum outer part. With the help of a regulator on the terminal box and a flow level controller, the technique operates in forced or automated mode. The electric motor does not have contact with the pumped water, therefore, an air version is used as a cooling system.

The device is installed horizontally and fixed to the wall. The main characteristics of the model are as follows:

• supply - 1.5 m3 / h;
• head - 15 m;
• autostart at 0.09 / 0.12 m3 / h.

The equipment consumes up to 0.12 kW of electricity and operates at temperatures up to + 110 ° С, therefore it is successfully used in hot water supply and cold water supply systems. The model weighs only 3.5 kg, which simplifies the installation process. It costs 3000-3200 rubles.

The disadvantages of the device are found in increased noise and rapid heating. At the same time, it will provide uninterrupted operation for 3 years, and the warranty period extends only for a year.

Comfort X15GR 15

The unit is characterized by a sufficient capacity of 1.8 m3 / h, a good head of 15 m, inlet and outlet diameters of 3 and 4 inches. The design includes a stainless steel housing, a vane-type cooling system, a flow switch. The device operates in manual or automated mode from a traditional single-phase power source with a voltage of 220 V. The device is mounted directly on the pipeline in a horizontal position with additional fastening to the wall.

"Vodotok" (XinWilo) for swap X15G-15

The advantage of the model is the ability to work in combination with cold and hot water supply systems at a maximum temperature of + 100 ° C. Power consumption 0.12 kW. The device is highly resistant to corrosion. The equipment weighs 3 kg, which simplifies the installation process, in addition, it has a small size of 220x170x130 mm. The device costs up to 3,500 rubles.

Users noted that this option has a fairly short electrical wire. You need to lengthen it yourself. Excessive noise was also noticed.

How to choose the best pump model in 2018

The most important indicator of a water boosting pump is its capacity. Here you do not need to select a model with the maximum indicator, this can lead to a breakdown of the water supply system, and an underestimated parameter will also not be useful. Therefore, it is necessary to choose the device with the most optimal performance. The fluid pressure should not exceed 2 atm, this will be enough for comfortable water procedures and the operation of an automatic washing machine.

But it should be taken into account that if the cottage has a jacuzzi, shower stall and similar devices, the pressure should be slightly higher - up to 5-6 atm. Therefore, before purchasing a booster pump, you should calculate the required pressure level based on the instructions of household appliances. Also consider the likelihood of purchasing new equipment.

The most accurate calculations will be helped by a specialist, but, as a rule, an approximate calculation is sufficient. To calculate the fluid pressure in the system, prepare a liter jar. It must be placed under the tap and the mixer turned on to the maximum. At the time of water supply, you should note the time and then calculate how many liters are released in one minute.

Next, you need to decide on household needs. For example, for a shower of a sufficiently low pressure, a traditional pump with an increasing capacity of up to 2 atm is suitable here. But, if the house has a washing machine, dishwasher, car wash and other equipment, study its technical documentation, and then determine the maximum indicator.

VIDEO: Varieties and rules for choosing compact booster pumps

The operation of many types of plumbing equipment and household appliances directly depends on the pressure in the water supply network. If it is low, then this fact is a real problem, especially in high-rise buildings.

The only way out of this situation is to use a pump that increases the pressure in the water supply. Otherwise, living in such an apartment or house becomes extremely uncomfortable.

The rate of pressure in the water supply system

The unit of measurement for this indicator is bar... Another name is atmospheric unit. Physically, this can be interpreted as the rise of water under such a pressure to a height of 10 meters.

In the networks of settlements, the pressure according to the standards should be 4-4.5 atmospheres, which ensures the maintenance of buildings with a high number of storeys.

In accordance with the current standards given in SNiP 2, 0401-85, cold water in the system should be within 0.3-6.0 atmospheres, and hot water - 0.3-4.5. But you need to understand that it contains extreme values ​​and this does not mean at all that at such extreme values, the water supply system will function normally. In such circumstances, pumps are used to increase the pressure of the water in the water supply.

Excessively high pressure in the water supply network is no less dangerous than insufficient. So, if this indicator reaches a value of 6.5-7.5 atmospheres, extreme conditions are created for the operation of the compounds.

In plastic pipelines, threaded joints and joints created by soldering begin to leak water, forming leaks. Under these conditions, only weld metal fittings should be used.

It should be noted that gushing artesian wells can give a pressure of up to 10 atmospheres and in such circumstances it is necessary to use pressure control equipment.

Causes of low pressure in the water supply

Circumstances leading to a drop in pressure in the water supply network can be both objective, arising as a result of natural processes, and subjective, associated with errors in design, calculations, selection of equipment. They can be formulated as follows:

1. Increased utilization of water associated with high seasonal consumption. This happens in the summer when private sector consumers consume large amounts of water to irrigate their gardens.
2. Defective or underpowered pump at the distribution station.
3. Clogged pipes. In the case of using metal water pipes, it may be rust mixed with naturally occurring insoluble limescale deposits.
4. Water leaks due to gusts or leaks in the water supply system. They form mainly at the joints of pipes or eat through their walls. The only way to avoid such defects is to carry out periodic inspections and current repairs strictly according to the developed schedule.
5. Insufficient power of the electrical networks supplying the substation.

For the private sector, which uses individual water intake in the form of wells or wells, this becomes possible due to a gradual decrease in their flow rate as a result of siltation of sources, clogging of filters.

The most unpleasant thing is that the factors that reduce the pressure in the water supply do not appear at one moment, their influence is significantly extended over time and are invisible. Obviously, there is a need for constant control over the throughput of the pipeline.

How does a booster pump work?

The most common signs of insufficient pressure in the water supply system are low pressure from the tap or the inability to use two or more taps.

This becomes a reality already when the pressure drops closer to the minimum standard value.

If it is checked and established that the water pipes are in good condition, it is necessary to install pumping units to increase the atmospheres in the water supply network. For this, centrifugal devices driven by an electric motor are used.

Performing the same functions - maintaining water pressure in the water supply system - they may differ in their principle of operation:

1. Permanent devices - they work around the clock in a continuous mode, maintaining the water pressure in the system. The disadvantage of this type is the constant power consumption and accelerated wear of the equipment. Such devices do an excellent job when turned on in manual mode during peak loads on the water supply system, for example, when watering a vegetable garden.
2. The pump is automatic, equipped with a flow sensor. It is turned on when there is movement of water through the pipe, which indicates the presence of a flow at a given time. This mode of operation is more economical than in the previous case. The cost of an automatic pump for increasing the pressure in the water supply system is slightly higher, but this is offset by a more economical mode of operation.

The essential difference for such equipment is the cooling method. In devices dry rotor the impeller is located in a separate chamber and is separated from the water flow by oil seals installed in the housing.

Watch the video

Pumps wet rotor work directly in water, which favorably affects their durability, since the liquid is both a cooling agent and a lubricant for bearings.

The main advantage of such devices is noiseless operation. This allows them to be installed indoors.

Rules for the selection of pump power - technical characteristics, their meaning

The main factor affecting the choice of a device for supplying water and maintaining normal pressure in the system is the nature of the water intake point:

1. The self-priming unit is used in conditions where the water intake point is below the installation level of the unit. Structurally, they are arranged in such a way that they are able to independently suck water at a distance of up to 8 meters in depth.

The shorter the distance from the water to the pump, the more efficiently it picks up water, so the installation site should be as close as possible to the source.

1. Normally, suction units are installed in the water supply system and maintain pressure in it, while the source of water intake, as a rule, is located above the unit itself. This can be an inlet pipe or a container for storing water.

A separate line is produced by circulation devices designed to provide an accelerated circulation of the coolant in heating systems. They are equipped with a temperature sensor for automatic flow rate adjustment. The place of their installation is the return pipe of the heating circuit.

1. Well pumping devices are used to supply water and maintain pressure from large tanks and wells. The design of such a device ensures almost complete noiseless operation. Air suction is not allowed when the water level drops. It is guaranteed that this will not happen if the unit is equipped with a device for automatic shutdown at a critically low liquid level.
2. Submersible borehole pumps are designed for installation in confined dimensions, determined by the diameter of the casing of the water intake. Therefore, their diameter is small, and the productivity is high enough to meet all the needs of consumers.

How to choose a pump based on hydraulic characteristics

The main indicators when choosing are the following indicators:

• Q- productivity of the device, measured in cubic meters per unit of time - m 3 / hour;
• H- head value - the height of the water column, measured in meters.

These two indicators determine the performance of the device. They are interdependent, when you change any of them, the second changes accordingly.

1. For a country house for 4 people, it is 1-2 cubic meters per hour.
2. When using water for irrigation of the site - 2-3 cubic meters per hour.

The indicator of the pressure required for the water supply network can be determined with sufficient accuracy from the ratio:

H = H geo + (0.2 +L) + 10 (m), where:

H- pressure;

N geo;

L – total length of delivery and suction pipes;

10 - the minimum value of the required pressure at the point of draw-off.

Using the selected indicators and the calculation performed, you can select a device that meets the requirements of a specific water supply network.

The pressure of the selected pumping unit must ensure that it performs the following functions:

1. Raise the water column from the suction point to the required height.
2. Overcoming the hydraulic resistance of the pipeline, including the pipes themselves, fittings, measuring instruments and control equipment.
3. Getting the right pressure at the end point of consumption. To do this, to the obtained calculated result, you need to lay a stock, adding another 10-12 meters.

The characteristic indicating the height of the post is a passport parameter and is always indicated in the accompanying technical documentation.

Watch the video

If the distance between the building and the water intake point is 25-28 meters, you should opt for a submersible pump instead of a self-priming one.

Selection of a booster pump taking into account technical characteristics

Domestic pumping stations are used to organize water supply for private buildings. Such units are capable of producing water from various sources - tanks, wells, borehole water intakes or natural reservoirs. Of the positive aspects of using such a device, the following can be noted:

1. The systems maintain the same pressure in the piping, which allows the use of various household appliances and plumbing equipment in the house.
2. There is no need for regular monitoring of the station - built-in automation ensures the operation of the device for a long time.

Domestic pumps are demanding on a stable power supply.

The main units of such a device are:

• hydroaccumulator;
• surface-mounted or submersible pump;
• pressure control relay;
• fluid return valve at the water intake;
• power supply and adjustment device.

A hydraulic accumulator is a vessel in the form of a cylinder, separated inside by a flexible partition. During the production process, gas is pumped into one compartment at a set pressure.

Water enters the piping through the accumulator, at this time the pumping unit constantly pumps liquid, which acts on the flexible joint. When the set value is reached, the diaphragm acts on the pressure control switch, pumping is stopped.

When one or more taps are opened, the pressure in the vessel decreases and the pump is pumped again.

It is this unit that is the main unit of the station and the operation of the entire installation largely depends on its characteristics.

Watch the video

Pumps that increase the pressure in the water supply

On delivery, the automatic stations are equipped with external pumps. They are installed on a metal base - a frame together with hydraulic accumulators and control units. A water intake pipe is connected to the inlet of the pump, which is immersed inside the casing, into the mouth of the casing or other water intake.

The standpipe system allows such a device to be installed in wells with a narrow casing.

By design, the pumps are of vortex or centrifugal action. The former create water suction due to the rotation of a rotor with blades located directly in the housing.

They work almost silently, which determines their main use as a pump to increase the pressure in the water supply system, built into the piping inside the house.

Such units are used in systems operating only at positive fluid temperatures. When defrosting, they simply become unusable.

Centrifugal pumps make a lot of noise during operation, but they are capable of pumping water from deep aquifers. In addition, they are efficient even at subzero temperatures, so they are installed either in separately located buildings or in a borehole caisson.

Accumulator device, characteristics

As mentioned above, water supply at home when using pumping stations is carried out indirectly through a hydraulic accumulator. Such a device equalizes the pressure in the system and protects it from hydraulic shocks when pumping is turned on.

Watch the video

An important indicator for a battery is its capacity. The larger it is, the less often the station pump is turned on, which increases its service life and saves energy.

Installation and connection of a pressure boosting station

The location of the pressure boosting device is always selected closer to the water source... In the second case, you need to open and equip a special bunker - a caisson with equipment.

Video installation
Watch the video

In depth, such a container should be at least 2 meters. On the bottom, you need to make a water seal of clay, and brick the walls or arrange a concrete wall.

It is also possible to install the pumping system in a separate room inside the house if a silent unit is used.

When installing a water intake in a well, you need to make a special shelf on its wall, on which the equipment is located.

In houses with periodic visits (summer cottages), equipment for the winter is usually dismantled and stored in the house.

Watch the video

Since the depth of the well often exceeds the capabilities of the suction pump (8-9) meters, a station with a submersible or ejector pump is used for them, which allow water intake at a well depth of up to 45 meters. But such equipment will cost a little more.

Popular models

Currently, one of the leaders in the pumping equipment market is the brand Gilex... Very affordable in price - from $ 100 - they are quite durable and reliable in operation.

The pumps are available in cast iron, polypropylene and stainless steel housings. The latter option costs a little more, up to $ 350, which is offset by higher reliability. The battery capacity is 24 liters.

The submersible pump option can cost up to $ 500 and reliably pumps water from a depth of up to 32 meters with a flow rate of up to 1200 liters per hour.

Popular on the market and pump stations Grundfos... They are produced in chrome-plated metal cases with 24 and 50 liter accumulators. The stations are practically silent in operation and are distinguished by enviable durability.

A significant drawback of the Grundfos supply policy is the lack of spare parts that are not supplied to our country. So, any malfunction of the equipment leads to the need for its complete replacement.

Prices at Grundfos Station start at $ 250. These are low-power units - from 850 watts with an external pump with a lift of 8 meters and a capacity of up to 3700 liters per hour.

Equipment with a higher power, up to 5000 liters with a 1.5 kW pump, is already twice as expensive - about $ 500.

The Grundfos family with stainless steel bodies starts at $ 450, and there are configurations for $ 1200. But they are equipped with many functions: protection against overheating and idling, as well as water cooling.

Good reviews come from consumers of plumbing equipment Vilo... These are stations of higher power, designed for water supply of fairly large objects, while the control scheme has the ability to steplessly adjust all the main parameters.

The control is carried out via an active display using a programmable processor. The equipment is very solid and the cost of 1000-1300 dollars in this case is quite justified.

It should be noted that up to 4 surface pumps can be installed in a pumping station of this type.

The choice of a pump for increasing pressure in the water supply system

It is impossible to create conditions for comfortable living in a country house without a reliable water supply. In modern plumbing systems, it is also impossible to do without a pump to increase the pressure in the plumbing.

Points to consider when sizing for electricity bills and meeting the need for clean water. Let's consider some points:

1. The pump used in suburban water supply systems should provide not only the direct needs of residents, but also such as watering the garden and plot. And if there is a pool - its filling and functioning.
2. For a small country house and in the presence of close-lying groundwater, installation of a surface pump should be preferred. Its performance is sufficient for both domestic and irrigation needs.
3. Deep water may require the use of an ejector pump. If there are no other options, you will have to attend to the equipment of the caisson, since such equipment makes a lot of noise.
4. A private plumbing system requires a storage tank, which is often located in the attic. At the same time, it is extremely necessary to have an automatic water filling device and overflow control, otherwise the house can be flooded.
5. The ideal solution to the problem of water supply can be considered the installation of a pumping station with all the necessary adjustments.

Watch the video

When using a washing machine or Jacuzzi bath, the pressure in the water supply must be not less than 4 atmospheres.

It is necessary to purchase a pump to increase the water pressure if you know the reason for the weak pressure. First, figure out what is causing the weak fluid pressure in the system. Not all pumps are suitable for generating higher pressure, we will tell you how to choose the right unit!

The reasons for the weakness of the water pressure

A pressure gauge connected to the water supply will help measure the pressure - it is advisable to take measurements more than once, but to observe the readings of the device for at least two days, taking measurements during the hours of peak water consumption (usually morning and evening), and also to test the pressure day and night, and not in one section of the system.

Optimal - to make measurements in neighboring apartments on the same floor with you and "vertically" to get a complete picture ().

1. If in different areas the pressure gauge gives different values, most likely we have clogged pipes. Over the years of operation, old steel pipes could be "overgrown" with a coating and clogged with dirt - they would have to be replaced.
2. The clogging of the sump, usually located in front of the water meter, can be determined by the equally reduced pressure indicators in the water supply segments located after it. The sump should be opened and thoroughly cleaned.
3. If the pressure gauge readings in different segments are normative, but the trickle barely flows, it may be in the aerator (a mesh filter built into the tap gander). Unscrew the tap, unscrew the mesh from it, clean it and return it to its place.

If everything is in order with the pipeline, sump and aerator, and the pressure is still low, get it checked in the house manifold. If even there it is below the norm, it means that the service provider is not fulfilling his duties. But getting public utilities to solve problems is often no easier than waiting for a rise in the standard of living in the country, so consumers get by with their own methods.

Booster pumps created for cold water supply help to save the situation: it is worth installing one to increase and stabilize the pressure force.

We select a pump for an apartment

Choose a water pump installed in an apartment by counting how many water taps and devices you have connected to the water supply. Traditionally, built-in pumps are chosen for apartment use. See if the pipe cross-section and model configuration are combined (sometimes created for specific cross-sections).

The higher the power of the unit, the higher the number of consumers and devices served by it. "Will serve". It is also important how much noise it makes: "Jericho's trumpet" is clearly not the best option. It is better to choose a pump for a small apartment more compact.

Choosing a pump for a country house

What kind of pumps for increasing water pressure are used in a private house? As a rule, wet rotor in-lines are purchased. They produce little noise and are easy to install. Having determined the place for installation, choose a unit mounted vertically or horizontally. Devices "packed" in a stainless steel case are more expensive than cast iron devices.

Principles for the selection of boost pumps

When evaluating high-pressure water pumps, design features are usually taken into account:

• Units with a wet rotor are in-line (they are cut into a segment of a water supply system in front of a draw-off point or a device that needs a pressure of a certain force). They do not need prophylaxis - they "self-lubricate" with what they pump. They are compact and quiet. But their performance is relatively low, and one nuance must be taken into account when installing: the rotor axis of the electric drive of such a pump should be located strictly horizontally;
• Dry-rotor units are distinguished by a withdrawn power unit with its own cooling device - a fan, so they need to be additionally fixed on the walls. Such a unit is more efficient than a wet-rotor one, and has the ability to serve more than a single draw-off point. But he needs prevention - friction units need lubrication. It makes a little noise when working.

Grundfos UPA 15-90N

This boost pump is manufactured in Denmark. Has a wet rotor. Designed with stainless steel casing, composite impeller, aluminum shaft and bearings, thus resistant to corrosion. There is a flow sensor. It is controlled both manually and automatically. Provides a head of 8 m and a flow rate of 1.5 m3 / h, an operating temperature range of + 2-60 ° C.

• consumes little electricity - 0.12 kW;
• well assembled, easy to install, easy to operate;
• low noise;
• protected from overheating (if the liquid becomes too hot) and dry running (when operating in automatic mode);
• 3-year warranty, life-10 years.

There are only two drawbacks - the high cost and significant costs if the repair is carried out after the expiration of the warranty period.

Wilo-PB-201 EA

Wet-rotor device from the model range of a well-known German brand - a cast-iron body is protected by cataphoresis, a stainless steel shaft, the material of the pipes is bronze, the wheels are plastic. You can switch from one mode to another manually or turn on an automatic machine with a flow sensor. Head 15 m, flow 3.3 m3 / h.

Pros of the device:

• capable of functioning at water temperatures up to + 80 ° C;
• in case of overheating and dry running, protection will work, the engine is "ventilated";
• easy to install, maintain and use; in the installation;
• makes little noise;
• one-year warranty, 10-year service life;
• budget cost.

Of the minuses, it is worth mentioning horizontal mounting and some cumbersomeness.

Jemix W15GR-15 A

Dry-rotor unit jointly produced by Russia and China is a fairly well-known brand. The "filling" is protected by a cast iron casing, the motor is protected by an aluminum casing, the wheel The pump has a cast iron casing, a motor in an aluminum casing, the wheel material is plastic (there is nothing to rust). The control is manual and automatic, the engine cooling process is carried out by means of a fan. Head 15 m and flow 1.5 m3 / h.

Pros of the model:

• unpretentious in terms of energy consumption - 0.12 kW;
• suitable for hot water supply - withstands up to + 110 ° C;
• protected from overheating, the automation controls dry running and in this case it turns off;
• small and lightweight;
• very affordable cost.

Disadvantages: makes a noticeable noise and heats up. One-year warranty, will last no more than 3 years.

Comfort X15GR 15

Also, a Russian-Chinese device (equipped with a dry rotor) with an anti-corrosion housing, a paddle fan and a flow control sensor. Head 15 m, flow 1.8 m3 / h.

Advantages:

• modest energy consumption (0.12 kW);
• operation for hot water supply is possible - will pull the operating temperature + 100 ° C;
• small and lightweight;
• easy to install and use;
• inexpensive.

Disadvantages: noisy, equipped with a very short power cord (1.5 m).

Grundfos MQ3-35

A reputable Danish brand has created a fully automatic pumping station with a control panel - on it you will see several fault indicators and a power button. It includes a hydraulic accumulator, an ejector for lifting additional meters, a self-priming pump and an electric motor - all parts of the device are made of anti-corrosion chromium-nickel alloy, which increases wear resistance. Provides a head of 8 m and a flow rate of 3.9 m3 / h.

Advantages:

• consumes 0.85 kW, which is quite a bit for such a functional device;
• reliable (equipped with a check valve);
• 100% protection - turns off in case of malfunction of parts of the structure, signs of dry running, too much heating of water and even the atmosphere;
• has an "anti-loop" option that allows you to interrupt work infrequently;
• compact, lightweight, easy to install;
• relatively quiet;
• two-year warranty period, will last 10 years;
• relatively low cost.

Disadvantages: designed exclusively for cold water supply (withstands up to + 35 ° C), small volume of the accumulator.

Conclusion + related video

So, the pump model you have chosen will help to bring the pressure indicators in the water supply to the standard values ​​(there is a choice).

If the area of ​​the residence allows, a pumping station to increase the water pressure would be a good solution - thanks to a hydraulic accumulator, it is able not only to raise the pressure level, but also to create it “on its own”.

Usually, not all residents of an apartment building are satisfied with the quality of the water supply system. It's all about the pressure of water, which can sometimes be so weak that it is simply not enough for the functioning of household appliances (washing machine, dishwasher, gas water heater). Sometimes, with a weak pressure in the water supply system, water does not reach the residents of the upper floors at all. If we cannot influence the total pressure in the water supply networks, then we can still do something for our apartment. To obtain a comfortable water supply within your apartment, it is enough to buy and install a boost pump. Such equipment will only help if the trouble of poor pressure is not associated with clogged water pipes or a supply riser.

To increase the water pressure in the water supply system, special pumping equipment is used. If for an apartment building the pressure rate should be within 4 bar, then in fact it can drop to 1.5 bar. At the same time, for the operation of many household appliances, the water pressure in the water supply system of the house and apartment must be at least 2 bar. And the shower stall and jacuzzi will not be able to function at such a pressure at all, since they are designed to work at a pressure of at least 4 bar. At the same time, higher pressure may not have the best effect on the water supply at home.

Important: some parts of the plumbing system in the house can be damaged when the pressure rises to 7 bar or more. That is why it should be within the normal range and be stable.

As for the peak hours of water consumption, residents of the upper floors of the house are especially affected, who may not wait for water from the tap at all. At the same time, normal water supply is ensured to the apartments on the lower floors. To increase the pressure of the liquid in the water supply system on the upper floors, you will need to buy and install a pumping unit to increase the pressure. They are installed in the inlet of the water main.

Varieties

All pumping products for increasing pressure can vary in the following ways:

1. Depending on the control features, the following units are distinguished:
   • with manual control. Such a household pump can be permanently either on or off. The owners of the apartment only have to make sure that there is water in the system. If the unit runs dry, it will quickly fail from overheating. It would be most reasonable to turn on the device when using the water supply and turn it off at the end of this;
   • the automatic water pump is equipped with a sensor that turns on the unit when the need arises. The same device turns off the automatic pump when there is no water in the pipes.

1. Depending on the temperature of the working medium, pumps for increasing pressure are divided into the following types:
   • pumping equipment designed to work only in cold water;
   • units for increasing the pressure in pipes with hot water;
   • universal automatic device designed to operate at any ambient temperature.

1. One of two cooling systems should be used to protect pumping equipment from overheating:
   • units with a "wet rotor" are cooled by the pumped water. These devices for increasing the pressure in the water supply system of the apartment are distinguished by their quiet, silent operation. But they can quickly overheat and fail in the event of a "dry run" (when there is no water in the pipes);
   • devices with a "dry rotor" for cooling use the air flow, which is created due to the rotation of the blades fixed on the shaft. These products make more noise during operation, but their performance is much higher. In addition, their performance does not depend on the presence of water in the system.

Self-priming pumping unit

As for the apartments on the upper floors of the house, where water sometimes does not reach at all, then the only way out is to use a self-priming pumping station. The standard station package includes:

• pump equipment;
• pressure switch;
• hydroaccumulator (membrane tank).

Such a pumping unit pumps fluid into a hydraulic tank. The required pressure indicator is set on the relay. Then the unit supplies water to consumers from a tank under a certain pressure.

Advice: there are pumping stations without a hydraulic tank, but for a house it is better to buy equipment with a hydraulic accumulator, in which the necessary supply of water will accumulate. Thanks to this, the pumping equipment will turn on less often and will last much longer.

Such a pumping unit works according to the following principle:

1. First, the booster pump will draw water into the hydraulic tank. After that, it will shut down.
2. In this case, the consumer can use water from the membrane tank even when there is no water in the pipes of the house.
3. After all the water from the hydraulic tank has been used up, the pump will start again to pump water into the storage tank.

A pumping unit for increasing water pressure can be used not only in an apartment, but also in a country house, in a country house for arranging a water supply system and watering a vegetable garden.

Before purchasing a station, it is necessary to clarify its maximum head. For an apartment, you can use low-power units. And for a country house, you will need equipment with significant pressure.

How to choose?

When buying a pump for increasing pressure, you need to pay attention to the following technical characteristics:

1. The choice of the power of the device should be made taking into account the number of taps in the apartment, as well as the household appliances installed and connected to the water supply system.
2. Noise level is very important for any apartment, so give preference to silent appliances.
3. Each booster pump is designed for a certain section of the pipeline. If you choose an unsuitable unit, then it may work with overloads or give insufficient head.
4. Any pumping unit provides a certain level of water rise. A unit with an insufficient lift level will not be able to supply water to the desired point in the house.
5. The device is mounted on the inlet water main, which is usually located in the toilet or bathroom. Due to the fact that they do not differ in impressive dimensions in modern apartments, pumping equipment must be compact in order to save space in the house.

Installation of equipment

The installation of a pump for increasing the pressure of water in the water supply pipeline is carried out in the following sequence:

1. The supply main pipeline, to which the booster pump will be attached, must be marked taking into account the dimensions of the unit and adapters.
2. The water supply to the apartment is shut off.
3. The pipeline is cut along the markings in two places.
4. Threads are cut at the ends of the pipe.
5. Then adapters with an internal threaded connection are screwed onto the threaded pipeline.
6. After that, fittings from a set of pumping equipment are screwed into the installed adapters. In this case, you should pay attention to the arrows on the device. They will indicate the direction of the fluid and help you position the pump correctly.
7. A three-core power cable is routed from the electrical panel to the pumping product. It is better that there is a separate outlet near the pump, and the device is connected through an RCD.
8. After assembling the system, the pump can be turned on and checked for proper operation. Particular attention should be paid to the absence of leaks in the places where the fittings are installed. If required, the fasteners can be tightened. For better sealing of all joints, use linseed tow or FUM tape.

When installing a pressure boosting pump, the following recommendations must be adhered to:

• In order for the pumping equipment to serve as long as possible, use a filtering device that must be installed on the inlet pipe of the unit. This will protect the product from debris and other small particles that can cause rapid wear on the mechanical parts of the pump.
• A dry, heated room is suitable for installing the equipment. If the product operates at subzero temperatures, the water will freeze and the unit will fail.
• Since vibration is observed during operation of the unit, over time it can cause loosening of fasteners and leaks. Therefore, it is periodically necessary to check the tightness and tighten all connections.