The water meter can rotate in the opposite direction. If you notice an incorrect rotation, you will need to look for its causes. After all, you won’t be able to track how much water you used up in a month, which means you won’t be able to fill it correctly. payment receipt and submit it for payment. If the “reverse rotation” is noticed by the controlling organization, then this is fraught with all kinds of fines.

Why is this possible?

The very design of the water meter allows the rotor to spin in both directions. That is, technically, the rotation of the arrow is possible both clockwise and counterclockwise. The ratchet is not used in the design of the water meter. Therefore, situations when water meters spin in the opposite direction are not uncommon.

Video 1. The counter is spinning in the opposite direction

Reasons for "reverse" rotation

By the way, most often the counter rotates in the opposite direction more often in multi-storey buildings than in private ones. Here's why this might be happening:

• No check valve. It must be installed together with the meter, but this requirement is not included in the list of mandatory specifications water utility. Besides, check valve is not included in the delivery set of the water meter, so often they simply forget about its need;
• The pressure difference in common system pipelines. In a common pipe that runs along the floor, there may be a difference in pressure. With a large difference in pressure or if there is air in the system, the meter can be “pushed through” and rotate in the other direction;
• Reverse flow of water with the boiler installed: if the water from the boiler is not drained, but the riser is open, then it is possible that the liquid moves through the open mixer along the path of least resistance, that is, it overflows from the pipe supplying cold water to the pipe supplying hot. This situation should not occur if the boiler is properly installed;
• The counter is set incorrectly. On the body of the water meter there is an arrow indicating the direction of the water flow. Often people make a mistake and mount it incorrectly;
• Also, the cause may be the physical wear of the meter design. Only a specialist can determine this.

Video 2. How does an apartment water meter work?

What to do if a reverse flow of water through the meter is detected?

Most likely, you will not be able to fix the problem yourself, even if you have found the reason for such a strange behavior of the water meter. It is not recommended to use all kinds of improvised means, gaskets, tapping, as you can permanently damage the water meter.

You should call the housing office or the management company, or invite a plumber. The master will find the cause of the malfunction and eliminate it. It is also recommended to put . This will prevent not only reverse rotation, but also rotation when the water tap is closed, which is also considered a common malfunction.

Keep in mind that you cannot install a non-return valve yourself if you have to remove the seal to do this. This can only be done by specialists of the water utility - the same ones that installed it.

So, if you find that your counter is spinning in the opposite direction, then you need to immediately call in specialists, and not wait until the readings are “rewinded”. After all, it is fraught. After you call specialists, they will conduct the necessary inspection of the entire system, and not just the meter, and determine the cause of the malfunction. If the reason is in the wrong connection, then the water meter will be reconnected, and if it is in physical wear, then it will be replaced. Make sure that an act is drawn up about all the work carried out.

Video 3. The water meter broke. What to do?

Here is the recipe: Open both faucets (or raise the handle in mixing). Each liner comes with its own water. We wait a little. We close. And we reach out and feel the connection to the mixer. DHW must be hot. Cold water cold. If the DHW supply cools down quickly, there is a defect in the mixer and the cold one squeezes it.
viewed here link

if there is no tie-in from neighbors and leaks, then it is squeezed by pressure and water is withdrawn through the mixers.

Please! Regarding the "pumping out" of water by neighbors with such a scheme, firstly, if it were at all possible, then the meter should have been spinning BACK. That is, they would suck, figuratively speaking, water FROM YOU. By this I mean that the flow somehow passes through your counters. But in practice, with such a scheme as you described, this is impossible, because, as I understand it, you have no outlets to your neighbors, and the riser presses equally along its entire length (physics), and the movement of water should be "only forward", that is from the highway with more high pressure(riser) to a line with a deliberately lower one (internal apartment piping that opens into the atmosphere when the tap is turned, for example, in the kitchen, while the pressure is relieved). Even if the pressure in the riser is low, it is still impossible for water to leak to the neighbors. The only possible situation of this kind is when people use a storage water heater in the summer, including it in the apartment's pipe system after the shut-off valve from the hot riser, BUT at the same time they forget to close this very tap (and thereby cut off the internal "hot" pipe line from the riser) - and them hot water flows into an empty riser, supplying to some extent hot water neighbors are mostly down the riser)))) (this is in those houses where, during summer shutdowns, the riser is not connected to cold water, but just left blank). In general, no matter how much and no matter what plumbing the neighbors have, they cannot influence your meter if the piping scheme in the apartment is done normally. Such advice is to invite an independent (not ZhEKovsky) plumber. At least from those that are advertised, to analyze the situation. You can have two different plumbers, for a more "representative sample." This is what my friend did in the situation from post 18. (more on this in the sequel, maybe it will be useful to someone as an example of an unusual "housing and communal" story
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Guest 27. Guest | 23.04.2015, 08:06:58
Continuation to 26-

I just participated in the proceedings on this "strange" water supply scheme on the side of a friend who is in an apartment with a riser, and paid for some time "for myself and for that guy", until they found out. what's the parsley. It turned out that in these houses it is generally impossible to install meters before a major overhaul with a complete alteration of the entire pipe system, that is, that there should be risers in each apartment. They looked like this - at a certain length, the pipe after the counter went straight along the wall (pressed against it with a metal bracket), and in this place (already 10 layers painted over with paint, etc. to the state of a monolith, there was no tile in the toilet) outlet to the wall to the neighbors, which is impossible. see immediately. Neighbors, when my friend blocked the riser at his place to repair the mixer, for example, they thought that it was just that the water was turned off in the house for a while (this happened all the time, and no one called the housing office, because it’s constantly either busy or barking - "REPAIR !!!")

I’ll add to 27 - and the neighbors behind the wall (pensioners who are far from any technology in general) - it turns out that they thought that they still had a riser, and it passes INSIDE THE WALL (!). This is when they began to analyze the system together with a invited plumber, and went to the neighbors in the bathroom to see where the water comes from. Together with a lawyer, I had to take the ZhEK engineer by the scruff of the neck (at first he was reluctant) so that he would get the water supply schemes for this MKD from his archive, and then the "terrible truth" was revealed. While a comrade was suing (for writing off other people's cubic meters from him, the local water utility voluntarily refused to do this), they learned that there are many such houses, and judicial practice is extensive. My friend bought this apartment recently, and had no idea about such a cunning scheme (saving thick pipes of risers during construction) - before that he lived in rented houses in different designs - but there was no such "miracle" anywhere

Correct question. This happens, the reasons are below.

Producers are recognized. In fact, counters can inflate readings. But no more than 5-10% (it is unlikely that the counter can rotate arbitrarily, water simply does not allow the impeller to idle).

And old counters can also lie. Previously, the calibration interval for "cold" meters was 6 years, for "hot" meters - 4 years, after 2013 for all the calibration interval is 6 years.

By the way, immediately eliminate the wrong division price when, with an actual consumption of 2 cubic meters, the counter shows 20 cubic meters (it is unlikely that you yourself make a mistake when taking readings, ignoring the comma).

There is another option, however, for rented apartments. Sometimes the owners "in their own way" come when the tenants are not at home, to wash and collect drinking water.

A banal leak is one of the common reasons for such a disgrace. Therefore, you should always pay attention to external signs that there is a leak somewhere (toilet bowl leaking, water leaks, rust on the walls).

Good to know: close all taps and watch the counter for a while. If there are no leaks, then it should not spin. If the impeller still rotates on the new meter with the taps closed, look for the reason. Most likely, the taps do not completely shut off the water. In this case, it is necessary to repair the valve or taps.

What if the water meter works jerky?

Most likely, the matter is in the water supply, which is supplied unevenly. Or something got into the meter chamber (if a filter is not installed in front of the meter). This option can be excluded only by disassembling the mechanical part and installing a filter.

By the way, the loss of sensitivity of the counter itself can serve as a problem. In this case, it will have to be changed.

If there are no leaks, if installed counter takes into account only the water consumed in your apartment, if you take data in the black segment, to the decimal point - and with all this space readings run up, it is better to return such a device as defective.

Is it possible to use meters whose calibration interval has expired?

A water meter is a means of measurement and, according to the rules for metrology, is subject to mandatory verification upon release and periodic verification at certain intervals.

If you are the owner of such a meter, you must submit it for verification in a timely manner at the end of the calibration interval. If the device has not passed verification, then it cannot be used for water metering. In addition, even if somewhere it is announced that the calibration intervals of meters have been canceled, the expiration of this interval is one of the signs of a malfunction of the device.

Good to know: the delivery of meters for verification should be provided by the owners. However, it is more convenient to carry out verifications using portable verification facilities. This is done by regional standardization centers or firms that have the necessary approvals and certificates.

You will not have to pay for the check if the apartment is municipal. Otherwise, you, as the owner of the property, will bear all the costs.

By the way, the customer who paid for the verification procedure must necessarily receive documents in his hands (a certificate of completion, an agreement between the owner of the residential premises and the organization that performs the verification of meters, a certificate of verification), as well as a record in the technical passport of the device that the verification was successfully completed .

You can pay for water according to the meter after you submit one of the acts to the management company - on verification, replacement or commissioning.