How to check the water pressure in the inlet hose of a washing machine

Options for connecting a washing machine without running water

If there is no running water, then neither the pump nor the high-pressure hose for the washing machine will help. The solution would be to buy a car with a tank. Such models are produced by TM Gorenje.

Such machines do not require connection to a water supply. A special tank of various volumes is connected to their body. Water is manually poured into it, after which washing is performed as in a regular automatic machine.

Autonomous models have a built-in pressure pump. Thanks to it, the water pressure effectively washes away the detergents in the cuvette, so the quality of washing is at a high level. Depending on the selected tank volume, there is enough water for 2-6 washes. The range of such washing machines is not very wide, but you can choose interesting and ergonomic options. Of course, the price category of such SMAs is slightly higher than that of ordinary ones - this must be taken into account.

Attention! The owners of such machines complain about a significant drawback: due to the narrow neck, the tank is inconvenient to wash. But this is fully compensated by the fact that without running water you can wash things quite efficiently.

Purchasing an autonomous car is a great way out. Now you know how to create water pressure in the washing machine, so you can safely go shopping.

Autonomous cars with a tank

If there is insufficient water pressure, the problem can be solved by purchasing a washing machine that operates autonomously. This device is additionally equipped with a tank into which water is poured.

From it the machine draws water for operation. These types of models are equipped with a built-in injection pump.

The device provides adequate pressure, which allows for high-quality washing. The number of cycles that can be completed without additional filling of the tank depends on the volume of the tank.

Expert opinion

I work in the household appliance repair industry. Extensive experience in restoring washing machines and dishwashers.

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Self-contained automatic washing machines are slightly more expensive than those that require running water. But such devices can be used in the absence of the required level of pressure and even without.

Gorenje is the most famous manufacturer of this type of equipment. The machines of this brand are distinguished by high quality and have great advantages over similar models of other brands. The devices are equipped with a capacious tank, the capacity of which allows for up to 3 washes.

Simple devices with standard options are less demanding. More functional models require certain conditions to work correctly. Before purchasing, you should compare the requirements for connecting the washing machine with the existing characteristics.

How to check the water pressure in the inlet hose of a washing machine | samsung support

The pressure must be checked when errors “4E”, “4C” or “E1” appear.

Unplug the machine.
Turn off the water so that it does not flow into the washing machine. If you do not have a separate tap for the car, turn off the cold water in the entire apartment. Usually the tap is located next to the meters.
Prepare a rag and a small basin about a liter in volume.
Move the machine away from the wall to allow access to the hoses.
Find the inlet hose and start unscrewing it counterclockwise.
When the hose begins to unscrew easily, place a rag and a basin under the hose and unscrew it completely. Some water will come out of the hose.
Point the hose into the bathtub or sink and have someone turn on the water. Water will flow from the hose, evaluate the pressure. After this, turn off the water again.
Approximately this pressure is required for normal operation of the washing machine.
If the pressure is weak or completely absent, see the article “Errors “4E”, “4C” or “E1”. If the pressure is strong (matching the pressure in the faucet), proceed to the next step.
Screw the hose back on by turning the nut clockwise and tighten it with medium force.
Turn on the water and check that it is not leaking from under the nut.
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If water flows, it means the hose is not screwed on properly or is not tight enough. Turn off the water, unscrew and screw the hose again. If the water does not flow, plug in the machine.

How and what to replace?

If the problems are more serious and regular cleaning of contaminated parts cannot be avoided, then you will have to resort to replacing the washing machine pump. It is not at all necessary to completely disassemble the equipment for this. In the case of LG machines, all stages of work can be carried out through the bottom.

The algorithm of actions will be as follows.

Drain all the water from the tank, remember to turn off the water supply. To make the replacement process more convenient, it is better to place the device on its side so that the drain pump is on top. If you don’t want to stain the floor finish, then you should spread something like an old and unnecessary sheet under the machine. Next you will need to remove the bottom panel. You can do this with literally a single click.

If the machine is an old model, where the panel needs to be unscrewed, then you will need to disassemble this part very carefully. Unscrew the pump from the base. It is usually attached to screws located on the outside, near the drain valve. Pressing the machine pump from the side of the drain valve, pull it towards you. Disconnect all wires from the pump. It is imperative that you drain all remaining water from the pump, if there is any still there.

Take any container for this. Slightly loosen the clamps holding the drain pipe. After you remove the nipple and drain hose, get rid of any remaining fluid. If the “snail” is in good condition, there is no point in spending money on a new one. You will need to insert the old part, but with a brand new pump. To remove the snail, you will need to unscrew the bolts that secure it, and then unscrew the screws connecting the snail and the pump. Do not rush to attach the new pump to the cochlea. First, the latter must be thoroughly cleaned of dirt and accumulated mucus. Pay special attention to the area where the new pump will “sit.” It should be clean there too. Attach the cleaned volute to the new pump, but in reverse order. The next step is to connect the pipes. Don't forget about connecting the wires.

Having completed all the steps, you need to check the correct operation of the replaced parts. If everything was done correctly, the device will work as it should.

How to increase blood pressure?

Low pressure in the water supply is not a death sentence. You can connect a special booster pump and thus increase the water pressure to the required value.

Another thing is that these are additional costs. To get a clearer idea of booster pumps and their cost, let's give a short overview of such units.

Pressure increasing pump WILO PB-088 EA. A relatively inexpensive pump with good characteristics, which is suitable not only for a washing machine, but also for a shower cabin, jacuzzi and other things. Pressure – 9.5 m, temperature – from 0 to 60, power – 0.09 kW. The price is about 60 dollars.
Pump for increasing pressure GRUNDFOS UPA 15-90. A slightly less powerful unit, but it is still more than enough to ensure the normal operation of an automatic washing machine. Pressure – 8 m, power – 118 W, operates absolutely silently. The price is about 90 dollars.
Gilex Jumbo 60/35 P-24. This booster pump model is for those who need a unit to supply several consumers at once. For example, a shower cabin, a dishwasher and a washing machine. The pump gives a maximum head of 35 m, with a power consumption of 600 W. The price is about 107 dollars.
Marina Cam 80/22. This is already a full-fledged pumping station with appropriate dimensions. Pressure 32 m, water intake depth up to 8 m, power 800 W. Average cost: $170.

READ MORE: Drain hose in a washing machine - description

The choice of pumps that increase the pressure in the water supply system is quite large, and their quality is at the same level. Take the model that has the best characteristics and price.

How to determine the level?

The easiest way to determine the pressure level is to install a pressure gauge . In modern residential complexes this device is often installed during construction, but this is still rare.

Therefore, you can purchase it additionally and perform all the steps indicated in the instructions.

There are various systems for calculating pressure, the simplest of which is to fill a 3-liter jar with water at maximum pressure. If the apartment fills up in more than 10 seconds, the pressure is low. The average filling time should be 5-7 seconds.

What pressure is needed for an automatic washing machine?

When you live in an apartment building somewhere in a large city, you somehow don’t think about what water pressure you have in your water supply; as a rule, it is enough to operate an automatic washing machine. Another thing is for residents of rural areas and small towns, where the water supply system is in poor condition, there is almost no pressure in the pipes, which makes it impossible to connect an automatic washing machine - it simply does not work, giving a system error.

In such a situation, there are two ways: install pressurized equipment, or buy an automatic washing machine that operates independently of the water supply. Any other homemade solutions are mostly ineffective and do not solve the problem.

Minimum pressure

In fact, it turns out that having purchased a new functional machine with the hope of a comfortable solution to simple everyday tasks, the buyer does not have the opportunity to use it. Therefore, it is necessary to consider the operating requirements before purchasing. It is advisable to ask in advance what pressure force the selected model needs for normal operation. More details:

Daewoo, Electrolux, Zanussi, Samsung and LG require water pressure of 0.3 bar. For some models, 0.4 bar may be required.
Correct operation of machines from Whirlpool, Indesit, Candy, Ariston, AEG, Beko, Candy is ensured by a pressure of 0.4 bar or more.
Washing machines from Bosh and Miele brands are more picky about water pressure. Most models refuse to work if the pressure in the pipe does not reach 0.5 bar.
The use of this type of Atlant brand equipment requires a pressure of 0.6 bar.
Washing machines from the Kupperbusch brand are more capricious than others. For their operation, they will require from 0.8 bar. Fortunately, there are less demanding models.

Due to the fact that in some multi-storey buildings and villages the pressure level from the water supply does not even reach 0.1 bar, residents are not able to use automatic washing machines.

Selecting a pump for washing machine repair

If the pump has served for more than 5 years, and diagnostics show the need to replace it, you will need to purchase a new one. To increase the service life of your pump, you need to choose it correctly.

When choosing a pump, consider the following parameters:

Fastening to the volute: with 3 screws or 3, 4 and 8 latches. The mountings of the new pump should be the same as the old one. Otherwise, it simply won't fit.
Method of connecting wires: “chip” and “terminals”. If, instead of a pump with a chip, you purchase a model with terminals in the form of terminals, you will need to trim the double wires at the end, strip and install the terminals.
Placing a contact group. Can be located behind or in front. The location doesn't matter much. This does not affect the operation of the pump.
Manufacturer of drain pumps. There are several universal brands: Coprecci, Arylux, Mainox, Hanning, Plaset, Askoll. Pumps from these manufacturers are interchangeable.
Pump power indicated on the sticker. This parameter is not very important, since it is approximately the same for all models.

It is difficult for an ordinary person to understand the design features of pumps, so when choosing a new device, it is better to consult a professional.

Image gallery Photo from One of the ways to connect wires to the pump is the rear or front terminal in the form of a chip

The model with the chip can be replaced with a pump with terminals if you cut the ends of the double wires, clean and install the terminals

Placing the contact group at the rear does not have any effect on the operation of the washing machine pump

The front location of the contact group, like the rear one, is not of great importance, since it does not affect the operation of the pump

Pump with output in the form of a “chip”

Connecting wires to the pump to the terminals

Rear position of the contact group

Placing the contact group at the front

The design diversity of drain pumps is, first of all, determined by the features of the plastic pipe (volute) and the debris filters combined with them. In modern models, manufacturers use three types of pumps:

on three volute screws (Samsung, Indesit, Ardo);
on three volute latches (AEG, Bosch);
on eight snail latches (LG, Zanussi).

Pumps of the same type are interchangeable. For example, a Samsung pump is suitable for an Indesit brand car and vice versa.

Required water pressure for washing machines

Manufacturers of washing machines have come to the conclusion that washing efficiency directly depends on the rate at which the tank is filled. Therefore, the water supply must provide a certain water pressure for the operation of equipment. According to technical documentation, different brands of washing machines require different minimum water pressure required to start the device:

The ATLANT automatic washing machine requires a pressure of 0.6 bar.
For normal washing in Miele and Bosch machines, a minimum of 0.5 bar is required.
Normal operation for Whirlpool, Ariston, Indesit, Beko, Candy starts at 0.4 Bar. However, as experts note, most of these models are able to perform their functions efficiently even at lower water pressure.
Equipment from Samsung, LG, Zanussi, Daewoo, Electrolux is designed for at least 0.3 bar. Some models (after installing the intake valves) are capable of operating at 0.4 Bar. However, at the end of the day, it's all about the installed software.

It should be noted that residents of settlements and summer cottages remote from regional centers constantly experience difficulties with pressure in the pipeline. Very often the pressure does not exceed 0.1 bar. Naturally, any washing equipment will not perform its functions productively under such pressure. Some models may not start. Others, due to insufficient pressure, are not able to wash efficiently, since detergents are poorly washed off.

What is needed for repair?

To repair a faulty pump yourself, you will have to stock up on some tools and components. Their number directly depends on the scale of the problem that has arisen and the habits of the master. If we consider the worst case scenario of pump failure, the following parts will be required:

drain pump;
impeller;
axis;
contacts;
pump sensor;
cuff;
rubber gasket;
pulley.

You should be careful when selecting replacement parts - the spare parts must ideally fit the existing LG model. Ideally, you need to dismantle the old drain and ask the store salesperson to find suitable analogues. Another guideline will be the serial numbers, which must be applied to all pump components.

About a break from work

Rare machines do not stop working if the pressure drops. Although such a device can be found if desired, of course, it will cost more. The software of each machine constantly checks the water level and its pressure. The timer is a control element that carries out the basic “instructions” of the software: when a signal about insufficient pressure is given, the timer pauses the machine, and an error code appears on the display, the explanation of which is indicated in the manual.

Such a break can protect the machine from overheating or leakage. The washing machine has a pressure level indicator that is necessary for operation. Thanks to this indicator, in the event of a problem, the valves close completely. Thus, when paused, the machine is completely safe.

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About modern cars

Those who have previously used equipment with mechanical timers know that the operation of the washing machine was interrupted for some time due to a lack of pressure and was restored again after the level normalized. Thus, the machine was “in no hurry”; it waited for the pressure to be restored as long as necessary. The mechanical type timer stopped only when the operation was disrupted, and resumed operation again from any moment.

Nowadays cars are much more complex. They have a special operating scheme, which is controlled by specialized software. Of course, washing machines being developed now are much more efficient and safer than their predecessors. But such a rosy picture is spoiled by one “but”: if there is insufficient pressure in the water supply, there are often situations when the machine simply breaks down.

Equipment for increasing pressure

The market offers a choice of various models of equipment that increase water pressure in the pipeline. As a rule, the pressure can be increased to 6 bar. All devices are protected from overheating. Here are the most popular:

Pumping unit Marina 80/22. This station is capable of increasing the pressure in the system to 6 Bar. Capacity – 60 l. in one minute. Pressure – up to 40 m. The body and shaft of the unit are stainless steel. Operation at a temperature of 35°C is allowed.
Pump Gilex Jumbo 60/35. This station is functionally capable of operating in several directions. For example, providing water pressure for a washing machine and dishwasher at the same time. It is possible to supply water from an open reservoir or well. Pressure – up to 35 m. Power consumption – 600 W.
Cast iron pump Grundfos 15-90. The device has a water flow relay, so idle operation is eliminated. Increases pressure up to 6 Bar. Pressure – up to 8 m. Temperature – up to 60°C. Silent operation cycle.
Surface pump Wilo 088EA. An inexpensive device with decent characteristics. You can increase the pressure to 3.5 Bar. Power – 70 W. Pressure – up to 9 m. Productivity – 2.4 cubic meters per hour. Can be used at temperatures up to 60°C.

To choose a suitable pump, you need to familiarize yourself with the characteristics of the device and decide on the price.

Operating rules

With proper care, an SMA pump lasts an average of 9-11 years. To prevent this period from being shortened, you must:

ensure that the water is sufficiently clean (you must ensure that there are no foreign objects in the laundry pockets, and also remove pieces of dried dirt before washing);
monitor the serviceability of filters;
prevent the appearance of scale (for this it is recommended to use special water additives);
Completely empty the tank upon completion of washing (wait until 100% of the water in the working tank has been pumped out).

It should be noted that if the pump does break, it is never repaired, but replaced with a new device. Moreover, this should only be done by a qualified specialist.

You may be wondering why the drainage of water into the SMA does not work.

Indications for installation of sma

Appliance manufacturers are trying to improve their washing machines and make them more economical. In order to reduce operating time in modes that require water intake, you need to quickly fill it into the tank. Therefore, you need good pressure in the water supply.

What water pressure is needed for a washing machine? Depends on the programming of the electronic module. One washing machine may not start at all, displaying a fault code on the display. Another SM, due to low pressure, will significantly reduce the quality of washing, since detergents will be washed off with difficulty. In order not to make an unnecessary purchase, let’s figure out what pressure is needed for an automatic washing machine from different manufacturers.

For ElG, Electrolux, Daewoo, Zanussi and Samsung cars, the preferred pressure is from 0.3 Bar. There are also 0.4 Bar - this depends on the settings of the main module.
Models SMA Indesit, Virpul, Beko, AEG, Ariston and Candy require a minimum of 0.4 Bar. In practice, many of these machines will operate at lower pressure.
Bosch and Miele automatic washing machines will function normally if the minimum pressure is 0.5 Bar. Although the exact readings depend on the specific model.
The Atlant washing machine requires a minimum pressure of 0.6 Bar, and Kuppersbush has a record value of as much as 0.8-0.9 Bar. Depending on the model, the indicator can drop to 0.5 Bar.

For residents of a village or private sector where there are problems with water supply, the water pressure barely reaches 0.1 bar. That is, it does not even reach the minimum level of water pressure for a washing machine.

SMA with reservoir

This model is from the Slovenian brand Gorenje. Thanks to this SMA, you can do laundry even without running water. The body is white. High energy efficiency class. Energy consumption - 0.14 kWh/kg. Noise level during washing/spin - 58/71 dB. Equipped with a 100 liter tank. There is no possibility of connecting to a water supply. Specifications:

Maximum load, kg	7
Spin speed, rpm	800
type of instalation	freestanding
Load Type	frontal
Tank material	plastic
Energy class	A++
Washing class	A
Spin efficiency class	D
Water consumption, l	54
Number of programs	18
Dimensions (WxDxH), cm	60x60x85
Weight, kg	77
Cost, rubles	22 000
Drying	No

Useful video:

The lack of quality water supply should not become an obstacle to comfort. There are different ways to solve the problem - from installing special injection equipment to purchasing an SMA with reservoirs. The first option requires installation work, but will allow you to enjoy all the delights of automatic washing.

Washing machines operating without running water

In the vastness of the CIS countries, it happens that there is nominally a running water supply, but there is no water in it. Under such conditions, no pumping station will help. If the main source of water for your rural home is a standpipe or, especially, a well in the yard, there is a reason to get an automatic washing machine that does not need a connection to the water supply. There are few such cars, to be precise, only three models of one brand - Gorenje.

Self-contained Gorenje washing machines do not need a water supply connection, since a fairly large tank is attached to the side of them, into which water is poured. To start the wash, you just need to connect the washing machine to the power supply, pour water into the tank and that’s it – you can wash without worry. Moreover, the tank of the Gorenje washing machine is so capacious that its volume can be enough for 2-3 washes.

By the way, you can order a larger-volume tank that can hold enough water for 6 washes.

In addition to the inlet valve, autonomous Gorenje brand washing machines have a pressure pump. So water passes through the inlet valve of such a machine with quite a lot of pressure, washing the powder into the tank without any problems. The washing quality is very high. You can learn more about this technique by reading the article Washing machines with a water tank.

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To summarize, we note that in order for an automatic washing machine to work properly, it is necessary that the water pressure in the water supply reaches the minimum that is programmed in its control module and sensed by the inlet valve. If the pressure in the water supply is below the minimum, the machine will not work. There is a way out of the situation - install a booster pump, and if you have the opportunity to choose a washing machine, you can take a model that can work autonomously. Good luck!

How to choose the optimal pump

It is often difficult for the average person to make a choice in favor of one or another product offered on the market. In addition, not all sellers are distinguished by decency and sincerity. They may well convince you to buy expensive, powerful equipment, although there is no need for it. Therefore, when purchasing, you need to pay attention to the following nuances:

It is better to choose well-known brands - it is unlikely that a cheap product will last a long time;
you need to select a pump after studying its characteristics and comparing them with personal requirements;
pay attention to the noise level so as not to make complaints to the seller later.

It is recommended to purchase such a specialized product in the presence of a familiar specialist.

Plumbing requirements

Different manufacturers of automatic washing machines have different requirements for the water supply that will power their brainchild. Very often this does not depend on their whim, but on the features of the program embedded in the machine’s control module. The fact is that software developers for modern washing machines strive to make washing modes as short as possible and as efficient as possible. What is the easiest way to save time? Of course, when collecting water into the washing machine tank.

The faster the water is collected for washing and then rinsing, the less time it will take to implement the entire washing program as a whole. Everything would be fine, but German, Chinese and Korean scientists, accustomed to living and working “in civilization” where there are no problems with water supply, forget that their technology can work not only in St. Petersburg or Moscow.

Insufficient water pressure in the water supply may not cause the automatic washing machine to stop operating. But this will lead to other problems: slow collection of water into the tank and poor rinsing of detergents from the cuvette, which will affect the quality of the wash.

So it turns out that some villager will buy a washing machine, say from LG, in the hope of simplifying his difficult village life, and in the end he takes it back to the store, since he cannot connect it in any way. In our opinion, it is time to correct this injustice. First, let’s find out at what minimum pressure values in the water supply the automatic washing machines of various brands will operate.

The minimum water pressure for washing machines LG, Samsung, Zanussi, Electrolux, Daewoo is 0.3 bar. In some cases, certain models of cars of these brands are equipped with inlet valves that perceive pressure from 0.4 bar, but in the end, everything will depend on the software.
The minimum water pressure for washing machines Beko, AEG, Ariston, Candy, Indesit, Whirlpool, in most cases is 0.4 bar. Although many models of Indesit washing machines operate at lower water pressure.
The minimum water pressure for a Bosch automatic washing machine will already be about 0.5 bar. The minimum water pressure is perceived by a Miele brand washing machine within approximately the same limits, although much will also depend on the model of such equipment.
The minimum water pressure for an Atlant automatic washing machine is 0.6 bar. A kind of record holder in this case is the Kuppersbusch washing machine, because it needs a water pressure of at least 0.8-0.9 bar. Although some models work great at 0.5 bar.

What is the pressure in the village water supply? Well, this question cannot be answered definitely. It all depends on the locality, but it is known for certain that in a number of cases the pressure in the rural water supply does not even reach 0.1 bar, where will the automatic washing machine work?

The principle of operation of the pump, its application and location

During operation of the washing machine, water is supplied inside the device under pressure, that is, the intake occurs automatically as soon as the necessary programs are selected and the “START” button is pressed. The process then proceeds according to the following scenario:

the solenoid valve is brought to the open position;
a pressure switch (sensor for monitoring the liquid level in the tank) measures the required volume of water;
the path of the liquid runs through the compartments where the necessary detergents (washing powder) are located, water mixes with them, and thus enters the tank in dissolved form;
the liquid under pressure enters in the required volume into the chamber where the laundry is stored.

During the process and completion of the wash, the water pump comes into play. It is he who drains and pumps out dirty waste liquid after washing or excess water after rinsing. The pump is involved in almost all washing modes!

As soon as a signal from the electronic module is sent to the pump, waste water will begin to be pumped into the sewer due to the impeller of the device. The fluid path is as follows:

Water enters through a rubber pipe, which is connected to the tank and volute using special clamps, then the liquid enters the pump through a special filter located in the volute, it protects the pump impeller from debris, to avoid jamming of the impeller. Next, the liquid comes out through the drain hose, which is connected to the volute. The dirty liquid phase is pumped out until the waste liquid is completely pumped out of the washing machine tank.

During washing, the water is already in the lower part of the unit, which is why the end of the drain hose must be secured above the drain pump, since if this is not observed, the water will begin to drain from the machine by gravity. The drain hose must be installed at least 80 cm along its entire length!

The electric drain pump is located at the bottom of the unit under the tank. It is attached to a plastic volute, usually with three screws, and the volute, in turn, is attached to the body of the unit from the front side. This arrangement is convenient for quick access to it, if, for example, you need to clean it of debris or drain liquid from the system.

There are two types of pumps used in washing machines:

The circulation type of pump is used in conjunction with a conventional pump; they are used in new models of premium class machines such as Indesit, Ariston, etc. This option supplies water directly to the washing area and circulates throughout the system, which improves washing efficiency.

machines from a more budget type or not of a new generation, such as the Daewoo bubble machine (Daewoo), are equipped with a simple pump, for example from Askoll, which simply drains the waste liquid into the sewer.

Repair of the drain pump of a washing machine, as a rule, is not carried out; most likely, spare parts in such devices will have to be replaced. That is, you will have to completely replace the broken pump with a new one.

ATTENTION! You can also inspect the device yourself for blockages or pump failure. But when inspecting the internal mechanism, you must first disconnect the equipment from electricity. Using a special device, such as a multi-mmmeter, check the contacts going to the pump and make sure there is no voltage, and only then continue working. All these precautions are necessary because the work is carried out near an open source of water.

Convenience of a pump that increases water pressure

After connecting the pump, another question arises: how do you know when it’s time to fill the washing machine with water? In normal mode, the module gives a signal to the inlet valve, it opens and fills water. But if you turn on the pump when the valve is closed, this will lead to an emergency. To make it more convenient to supply water to an automatic washing machine, there is this method:

You need to get to the intake valve. To do this, unscrew the two screws on the back and remove the top cover.
There is a valve at the top of the wall.
There are two wires leading to each valve, to which terminals are connected. Then two wires are connected to the terminals, which must be led outside the housing.

These two wires (A and B) are connected to the current source according to the following diagram:

A relay is installed at the output, the contacts of which are connected to the pump. It turns out to be a kind of automatic water pressure for the pump.

Now the valves and the pump are connected: when the washing machine gives a signal to draw water, the relay will operate and the pump will turn on. Without voltage applied to the valve, water injection will stop. You can make a similar link yourself. Then you won’t have to stand by the machine for hours, monitoring the water intake.

Operating rules

With proper care, an SMA pump lasts an average of 9-11 years. To prevent this period from being shortened, you must:

ensure that the water is sufficiently clean (you must ensure that there are no foreign objects in the laundry pockets, and also remove pieces of dried dirt before washing);
monitor the serviceability of filters;
prevent the appearance of scale (for this it is recommended to use special water additives);
Completely empty the tank upon completion of washing (wait until 100% of the water in the working tank has been pumped out).

It should be noted that if the pump does break, it is never repaired, but replaced with a new device. Moreover, this should only be done by a qualified specialist.

You may be wondering why the drainage of water into the SMA does not work.