Solving the problem of low pressure of hot water from a gas heater

Repair work

What should be done if the taps are leaking or there is simply no water in them? There can be several sources of problems:

water drips even when the faucet is closed;
water seeps in a trickle when the valve is completely closed, while over time it only increases;
when the valve is open, water simply does not flow through the tap;
moisture seeps through visible damage to the equipment.

After the source of the problem is determined, it is necessary to turn off the water. It is recommended to immediately turn off not only cold, but also hot water, as you will have to remove the mixer. After that, the equipment is carefully disassembled so that repairs can be carried out.

For example, if the water just starts to leak, then the reason is a loose fit of the axle box or the complete wear of the rubber gasket. The gasket is very easy to change, it takes just a couple of minutes, including disassembly and assembly of the crane. In a ceramic faucet, a silicone gland will have to be sealed; for other models, a complete replacement will be carried out.

If the water flows in a trickle, then it also requires the replacement of a crane box, which simply has worn edges. But this problem is often caused by the fact that the mixer is not operated correctly. It is impossible to tighten the valve too tight when closing, because of this the edges are quickly erased, and repairs are required quite often. If the mixer shows severe damage in the form of cracks, then it just needs to be replaced. Repair in this case will be a simple waste of money and time, water will flow. If only the valve is damaged, then it can still be replaced, but it’s better to buy a new case right away.

If the water from the tap simply does not flow, but at the same time it enters the mixer, then the reason may lie in a broken faucet box or a gasket that is bent and prevents water from entering the spout. This problem is solved depending on the breakdown. If the gasket is bent, then it should simply be removed and replaced with a new one. If the axle box is broken, then it must be carefully dismantled, put in serviceable, check the operation of the crane.

In rare cases, a complete valve replacement is required. This usually happens if it is completely out of order, it can no longer be repaired. Experts advise replacing if the equipment is old, leaks and other problems are often observed. It is necessary to choose taps and mixers that are most suitable for specific conditions.
Today, manufacturers offer the widest range, so there should be no problems with the choice.

When water does not flow well from an installed faucet or it simply does not exist, you need to figure out what caused such a malfunction. After that, you can start the appropriate repair, the complexity of which depends on the scale of the breakdown. In rare cases, a complete replacement of the faucet may be required, but usually it does not come to this.

What needs to be done

Check the cold water meter. It should not make turns in the opposite direction. If, nevertheless, it is spinning, then it is necessary to close the tap on the riser, if the movement has stopped, then you definitely have a problem and you need to find a mixer or device that squeezes hot water.

If there are no water meters, turn off the tap on the hot water riser, open cold water in the mixer and wait until the hot water stops flowing. Then close the mixer, open the hot water tap on the riser and determine by hand whether the cold water outlet is heating up. If the problem is in your apartment, then the outlet will heat up, and if the neighbors have it, then it will remain cold.
To determine in which neighboring apartments the cause of the leak, turn off the hot water on the riser.Then, on the mixer, open the cold water tap, when hot water stops flowing, go to the riser and determine with your hand whether the riser is heated in the upper or lower part of the tap, which will show you the source of the malfunction on the upper or lower floors.

If the problem is in your apartment, and you do not leave the faucet valves in the intermediate position for a long time and constantly close the bidet valves, and hot water continues to flow from the cold tap, then the faucet malfunction is the cause. Most often it is an old, corroded gasket whose service life (7 years) has expired or a bad faucet gland. The mixer itself may be faulty. Replacing faulty parts yourself or with the help of a plumber will fix the problem.

Video why hot water flows from a cold tap

If water flows from a faucet with two taps, replacing the crane box

Faucets equipped with two taps (for cold and hot water) are easier to repair than lever ones. If the body itself is not damaged, then the reason most likely lies in the wear of the gland, which is located in the mixer valve. The simplest action in this situation is to tighten the nut until it stops. If the nut is tightly tightened, but the leak is not eliminated, then you will have to change the worn stuffing box. To do this, the union nut is dismantled, it is unscrewed using the appropriate tools, after which the stuffing box bushing is removed and a sealant is inserted into the resulting gap. A thin twine or linen thread, fiber from burlap perfectly copes with the role of a sealant. The stem is very carefully and tightly wrapped with a sealant when laying.

When making turns, the seal must be pressed extremely tightly to the rod, be sure to leave a gap for the subsequent placement of the sleeve. After winding the seal is completed, the sleeve is placed in its place, the union nut is tightened. After the actions taken, it is necessary to turn on the water, if everything was done correctly, then the flow process will be absent, and for a long time.

If, when you turn on the shower, water also flows from the mixer tap, you will need to replace the crane box - a locking element located in the mixer handles. The work of the faucet is aimed at preventing the flow of water at a time when the faucet is closed. Cranboxes are ceramic and with rubber gaskets, the second option is less reliable, as it wears out quickly, which leads to repeated. To replace the crane box, you need. To do this, using a screwdriver, it is necessary to remove the decorative parts from the handles, unscrew the screws that attach the handles to the faucet body and, using an adjustable wrench, remove the crane boxes. Then the new parts must be carefully screwed into place of the old ones, the main thing is not to overtighten the thread. If water flows from the mixer, from under the base of the tap, then the reason, most likely, is the wear of the eccentrics. The eccentric joints can be sealed with sealant and ordinary tow, this will be enough to eliminate this type of leakage.

In this article, I will describe a few examples when water does not go well and why there is no pressure in the riser, respectively, and there will be no pressure in the apartments either. First you need to accurately determine whether in all apartments the liquid is equally bad or in several.
I described the options for why it goes when the problem is in the internal wiring, and in this article I will describe the reasons in the basement.

Why does hot water flow from a cold faucet?

Oddly enough, there are a lot of reasons why hot water can run from a cold tap in a mixer. The culprit of such a celebration may be not only the mixer itself, but also other equipment installed in the apartment. Moreover, not even you and not your plumbing may be to blame - this is a disease of apartment buildings, and any of your neighbors in the riser can be the instigator of such trouble, without even knowing it.Among the most common reasons why hot water flows from a cold water faucet, the following points can be noted.

Failed mixer. They can be both from the old age of this plumbing fixture, and due to factory defects. At least four common problems with a faucet can be counted - gasket wear, gland wear, mixer body wear and factory defects, and in most cases it consists in poor-quality gaskets that can be dried out from time to time or simply do not fit the desired size.
Improper plumbing. The simplest and most common example is . People try to simplify everything and instead of completely closing the mixer, they simply turn off the tap on the shower - as a result, due to the pressure difference in the pipes of cold and hot water, a banal squeezing occurs. The same thing can happen with a conventional bath faucet, when a person turns off the water not with a tap, but with a switch on, setting it to an intermediate position.
Incorrect plumbing connection. As a rule, it is either , or . In the case of the first plumbing fixture, everything rests on improper assembly by amateur craftsmen - when the booth and all its hoses are connected not at the factory, but manually at the place where the booth is installed. In the case of an electric water heater, it’s the lack of a check valve—when your neighbor turns on cold water, pressure drops in the riser, and hot water from your boiler rushes to make up the pressure difference.

For more information about the situation with hot water in a cold faucet, see this video.

To some, this behavior of home plumbing may not seem critical - on the contrary, some people may see certain advantages in this. I hasten to slow you down a little - the consequences can be very sad. We will talk further about what can happen if the causes of squeezing cold and hot water are not eliminated.

plumbing service

If water does not flow or the faucet is leaking, then it is necessary to start repairing it. What to do first? First you need to deal with the causes of the phenomenon, after that already proceed to the appropriate work. Experts, in order to avoid such situations, are advised to adhere to the following rules:

When it is necessary to give preference not to the cheapest or most expensive, but the most convenient to use, of high quality in assembly and appearance. Often expensive faucets cause many problems with their home use, water may simply not flow due to the fact that the pressure in the water supply system is not suitable for such a model.
The equipment must be installed by a specialist. This will ensure reliability and no problems.
The operation of the equipment must be correct. From under what conditions and how the crane is used, its service life depends.
Presence of preventive examinations. Faucets, like other plumbing equipment, need regular inspection, cleaning, replacement of gaskets and other parts. Without this, they will quickly fail.

To fix the problem and repair the faucet if there is no water in it, you need to prepare the following materials and tools:

axle box crane (in case you have to replace it);
set of keys, adjustable wrench;
a special set of screwdrivers;
various gaskets (if the exact size is known, then it is necessary to take it);
silicone-based seals;
drill, set of nozzles.

What devices are to blame for squeezing

Any plumbing fixture can cause squeezing if a non-return valve is not used, because almost every home uses a dishwasher, boiler, washing machine.

Most often, consumers use a single-lever mixer. Refers to the cartridge type. The main working part has 3 openings for supplying cold, hot water and draining mixed water.Mixing of water is carried out by overlapping the holes for cold and hot water by the required amount with the mutual movement of two ceramic plates, adjustable by a handle. The tightness of the system is ensured by careful fitting and tight connection of these plates. As the mixer wears, the plates may rise in relation to each other, forming a gap, in which case, a squeezing effect may occur.

The same situation is possible when using a standard mixer, which has 2 taps and a shower, if the tap-shower switch is set to an intermediate neutral position when the taps are open. In this case, if a non-return valve is not used, then water will circulate in the system due to the pressure difference in the hot and cold water supply pipes leading to the mixer. Hot water will mix with cold water. This phenomenon is accompanied by the noise of flowing water, which is an additional diagnostic of the overflow.

Another device that can be the cause of the squeezing phenomenon is a bidet (hygienic shower) with a mixer and an additional button on the shower head that closes the water without shutting off both taps. If, after hygiene procedures, the faucet valves are not closed, but only the button is released, then the water in the bidet will not be supplied, but there will be a mixture of hot water in the cold water system, which can flow out when the cold water valve is open, including in the neighbor's apartment. By constantly closing the bidet faucet valve, you can avoid the situation when the cold water faucet is either cold or hot water.

The boiler may be the source of the problem. In the absence of a check valve, hot water from the boiler will flow into the cold water riser, due to a decrease in pressure when one of the neighbors uses cold water, or if they forget to close the taps at the inlet or outlet of the boiler when the tap on the hot water riser is open . If the boiler is constantly connected to the network, then in the event of an overflow, there will be hot water from the boiler in the cold water pipes, and, as a result, electricity costs may increase significantly.

Consequences

If hot water enters the faucet, where cold liquid should come from, then the temperature in it rises greatly. Because of this, pathogenic microflora develops inside. As a result, such an environment becomes hazardous to health. In this case, it is strictly forbidden to drink water from the tap without first boiling it.

DHW may start to flow from another mixer hole if there are errors in the installation of the boiler (the connection points are mixed up). The device will start heating the wrong liquid. In this case, the consequences will relate exclusively to the culprit of the situation. He will have to pay not only for the consumed electricity, but also for equipment repairs.

The device will heat the cold liquid. You should be aware that if such a breakdown occurs, then the Criminal Code or the Housing Office will not be responsible for this. The respective companies only deal with the repair of pipes up to the shut-off valve. Further, there are sites that are serviced by the owners at their own expense.

DHW and cold water supply scheme

It is forbidden to mount non-design devices to the riser on your own in the apartment. The consequences will affect not only the initiator, but also the neighbors. They will not know about the breakdown and will turn on cold water without fear. As a result, there is a risk of getting burned with boiling water. The blame for the resulting damage will be assigned to the violator.

Technical devices that are installed on a cold riser are not designed to work with high temperatures. If hot water comes out of the tap with cold water, then such equipment will simply deteriorate.

These types of devices include:

counters;
various filters;
drain mechanism;
toilet cistern.

We analyze the design of a new type

Lever faucets for the bathroom are very popular in our time. With their help, it is much easier to regulate the temperature and pressure of water.However, the design of such a crane is much more complicated. It does not have rubber cuffs and crane boxes, they were replaced by cartridges with ceramic plates. It is they who ensure the tightness of the locking unit.

Scheme of a modern type crane

If suddenly such a crane ceases to function normally, it must also be disassembled and the damaged parts replaced.

So, at the beginning of the audit, it is necessary to shut off the water supply.
The second point is also similar, the water remaining in the pipes must be released.
Now you need to remove the plastic plug that is under the lever and use a hex screwdriver to unscrew the screw. This will allow you to remove the lever and expose the internal cartridge.
You need to unscrew the cartridge from the tap using a ring wrench.
In its place, you need to install a new cartridge, after which the valve must be assembled in the reverse order.

Agree, the plan for repairing a new type of crane, although different, from what we are used to, however, is quite simple. It is quite possible to perform it on your own, without outside help.

SonMe.ru will tell you why this is a dream. See below the meaning of sleep

Dream Interpretation "astroscope"
Seeing an open faucet in a dream, Water flows from it - emotional balance, Inner harmony. I dreamed that I was about to climb into the bathroom, opened the faucet. At first, ordinary water flowed from it, then I glanced at it, a black ox flowed from there, I also thought how it was that there was a lot of active coal. and then strangers. The man says, look, this is blood, and indeed dark blood flowed from the tap, like from a vein.
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Dream Interpretation "AstroMeridian"
In a dream, drink clean cold water - in reality the world will be renewed, and you will be involved in this process of purification and resurrection in a new capacity, along with many people around you. If you dreamed that water was pouring on you from above, then this is an omen. What is the dream of Tap water - From the tap - leakage of vitality; irritation; the state of our blood and urological vessels; control over the flow of your feelings. What does it mean when you dream of Water - Drink clean, cool - to health; warm - to the disease.
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Dream Interpretation «sonnik-mira»
Water flows from pipes. A small stream of water from a faucet. Water flows along the walls. Water pouring from the bath. Water is pouring from the ceiling. From the ceiling, water pours in a dream to serious problems. Troubles can occur both at work and in a family setting. Be more attentive to what you do and say so that an unpleasant situation cannot be turned against you, try to smooth out conflicts, but do not follow the lead of other people who would like to take advantage of your kindness.
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Dream Interpretation "felomena"
If you dreamed that the faucet was leaking and you hear the sounds of falling drops, you will be spending big money and ruin. To a girl about to get married - such a dream says that her husband will squander all her dowry. If you see that blood is pouring from a tap instead of water, a tragedy awaits your relatives. I dreamed of water from a tap that flows in a thick stream, water flowed from a hot water tap. I also dreamed of a blue big new pan on the stove. I also dreamed of a friend who speaks badly of me in a dream.
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Dream Interpretation «magickum»
Water is pouring in a dream to change, as it reflects in this way the reaction to events

Further, in the context of sleep, it is important to decipher where the water is pouring from, where and what it is. If water flows from the ceiling - severe stress. Pure water from a tap or a stream of water flows to experiences, after which everything will work out

This is a dream in cases where the situation can no longer be discharged in a different way. If a jet of water flows from a hose, then the situation will be more tense.
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If water flows from a single-lever faucet

First you need to carefully inspect the faucet, you can visually determine the causes of leakage.Most often there is a chip or crack on the case, in which case you can try to cover them with sealant, if the size of the damage allows. This measure is temporary, especially if the chip is significant, then it remains only to replace the part with a new one. If the body is intact, but there is a leak, it is necessary to check the condition of the gasket. Replacing the gasket involves the complete dismantling of the mixer, this can be done by unscrewing the nuts on the body. If the mixer has a decorative casing (according to the aesthetic design, the casing covers the fasteners), then you just need to move it to the side. When access is open, you need to unscrew the nuts and remove the mixer. When the mixer is dismantled, the state of the gasket is immediately visible, which, if desired, can be easily replaced with a new one. After replacing the gasket, do not over-tighten the nuts, this leads to pinching and early wear.

Scheme of a single-lever mixer.

If water flows from a mixer built into the sink, and the sink itself is attached to the wall, then the situation is more serious. The most common cause of these faucets leaking is the wear of the ceramic built-in cartridge. In this case, use a screwdriver, knife or other sharp object to pry off the top cover of the linkage. The lid is removed with a little effort and thus provides access to the mixer stop screw. after the lever handle is dismantled, it is the turn of the decorative, and then the union nut. This opens up access to a brass or ceramic cartridge - the main cause of leakage. The cartridge is easily removed and replaced with a new one. The main thing in this business is the compatibility of the cartridge with the model and brand of the mixer. The new cartridge is installed in the socket, the holes and grooves of the cartridge must strictly match the grooves in the mixer body, after installation it must be fixed with a union nut. After all the actions performed, the decorative nut is tightened, the lever handle returns to its place.

Causes of water supply disruption

When hot water flows from a cold tap, instead of ice water, this is extremely unpleasant and such a phenomenon should alert any tenant. It is impossible to ignore the fact that the tap water has changed temperature, since the reasons can be varied.

The most easily solved is the confused marks when installing the mixer, it is easy to determine this - cold water flows from the hot tap, and hot from the blue one.

This situation is resolved as soon as possible. But if this is not the case, then such connivance does not lead to anything good, especially when hot water is supplied centrally.

In the event that city services are involved in the supply of hot water, you should immediately contact the housing office, or another relevant institution that provides the house with a resource.

Solving the problem when heated liquid flows from both taps is their direct responsibility, since a leak, especially when a home is equipped with a hot water meter, can cause significant damage to the tenant's personal finances.

The cost of hot water supply is 5-8 times higher than the cost of cold water. Thus, it is not only pointless for tenants to hide the violation, but it is also extremely profitable to correct it.

Nevertheless, according to many statements of ordinary citizens, such a water supply issue can be resolved by the public utilities for a fairly significant period of time and, as a result, not be resolved.

So, if the services are in no hurry to resolve the troubles that have arisen, and warm water continues to flow from the tap, which is responsible for the cold water supply of the dwelling, you need to look for methods and ways on your own.

Actions of the owner if the hot water supply goes badly

Depending on the skills of the owner, you can try to solve the problem yourself or contact a specialized service for help. If a person has experience in plumbing work, then he can try to resume the set himself.

But there is an important nuance here - it will be possible to fix the breakdown on your own only if the problem is local in nature. Usually the malfunction lies in a blockage or breakdown of plumbing.

How to independently identify the cause of low pressure in the system

If the reasons are more global and relate to the pipes of the whole house, then attempts to intervene in the system should not be made. Otherwise, the representatives of the Criminal Code will issue a warning.

First of all, it is necessary to exclude problems along the downward trajectory.

Actions should be as follows:

Talk to your neighbors and find out if they are having trouble getting hot water. If it turns out that other tenants also encountered a similar difficulty, then it makes no sense to disassemble the tap in your apartment. You must immediately call the management company to call a specialist in system diagnostics. You may have to completely change the pipes in the riser and look for an area with a blockage.
If, after analyzing the state of the highway, it turned out that everything is in order, then the problem lies in a certain apartment. It is necessary to turn on all the taps and see if the pressure changes because of this. In a situation where nothing happens, then the plumbing circuit is clearly not installed correctly. If the house is newly built, you need to talk to the developer.
If the problem was found exclusively in one tap, then you will have to disassemble it and inspect it for blockages. If you have the tools at home, the operation can be carried out independently. In the case of old pipes, it is advisable to replace them with plastic ones.

Note: if the UK has carried out diagnostics, but for a long time cannot solve the blockage problem, then you can increase the pressure throughout the house by purchasing a pumping station.

The equipment for pumping water is bulky, so it is placed in the basement. In addition, the cost of the station is high, but you can try to negotiate with neighbors on the joint purchase of equipment.

Appeal to supervisory authorities

If you have problems with the hot water supply, you must contact the management company. In the case when the specialist indicates that the source of the problem is in the local highway, then such a malfunction is not under the jurisdiction of the Criminal Code. Owners should call the district Vodokanal and file a formal complaint.

In some cities, electronic receptions have recently begun to function, where you can send an appeal. Together with the application and indication of the address, it is necessary to attach photographs of a weak pressure of water from the tap. And then wait for feedback. If such a service is available in the locality, then the problem is solved in a fairly short time.

If a weak flow is observed in the house regularly, but the specialists of the management company do not want to take action, then you can complain about their actions:

To the head of the Criminal Code - a sample claim.

To the housing inspection - an application template.

In Rospotrebnadzor - an example of a complaint.

If hot water from the tap does not run well, this is a serious problem, and therefore it is necessary to immediately take measures to eliminate it. In no case should you be inactive and hope that the pressure in the system will be restored.

If it is not possible to remove the blockage on your own or replace the failed mixer, it is advisable to call the specialists who will perform the operation in one day and restore a stable flow of water.

In the event of a larger breakdown associated with the plumbing system of the entire house, it is necessary to contact the management company.

Watch the video: "What to do if there is a weak pressure in the tap."

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The main causes of mixer failures

If you carefully study the device of a bathroom faucet with a shower, its repair will not be difficult.

It is only important to know the causes of breakdowns:

Unsatisfactory product quality. This is typical for products of little-known manufacturers who use low-quality components and consumables in their work;
Use of old consumables. For example, paronite or silicone gaskets last much longer than rubber products. In addition, they are less deformed and do not collapse from drying out;
Dirty water in pipes;
Increased water hardness affects the internal parts of the device, provoking the formation of deposits and cracking of the seals.