Dear visitors of our site. In a previous article, we wrote about why you need .
We have found that they are necessary to control the flow of water.
In this article, we want to focus on the reasons why the counter does not stop working.
There are cases when the readings of the meter go beyond the average consumption, the first thought that comes to mind is that I am the most unfortunate owner of a defective meter. We automatically call the company that installed the counters with claims.
And so that such incidental situations do not happen, let's look at the reasons for which the consumption increases.
1) A crane (mixer) "ball" (one-handed) "Chinese" was installed.
2) Pressure hot and cold water has a big difference (in hot water the pressure is higher).
3) Number of storeys, i.e. on which floor the faucet (faucet) is installed - after all, the pressure difference in the risers is also related to the height.
4) There was a planned shutdown of hot water for a month, and you did not turn off the shut-off valve and check valve missing from the system.
5) The fittings of the drain barrel do not work (miss) for you.
You have the above factors! Let's take a look at all these factors with an example!
When opening a faucet with hot water, the flow of hot water doubles - part goes to the tap (mixer) in the apartment, and part is squeezed through the tap (mixer) in half with cold water and goes into the cold water riser (difference in pressure and in the wrong regulation of the tap itself). Surely the faucet (faucet) is imported and is configured for the West or East (China), there are different pressures in the risers. (look in the passport for the faucet (faucet) there should be a faucet adjustment point, in normal ones it is). But there is one small nuance in such a situation - when hot water flows through a tap into a cold riser (imagine a chain of water movement - a hot water riser - a hot water meter (flow) - a tap (mixer) - a cold water meter ("COMING") - a cold water riser ).
That is, your counter should turn in the opposite direction! (You need to look at the DHW while the tap (mixer) is running)
It turns out that you spend 1 cubic meter of hot water and send 2 cubic meters to a riser with cold water. We see no other explanation.
When the pressure in the cold pipe is much lower than in the hot one, then when the tap (faucet) is opened, the cartridge does not hold water and the water is transferred to the cold water riser.
Do not make hasty conclusions, first of all, YOU will need to watch the meters in the process of water collection - ONLY DHW - ONLY cold water and in mixed mode. And if in reality the cartridge in the faucet (one-handed faucet) does not hold water, then YOU will need to dismantle the faucet or install a check valve in the wiring and when the water is turned off, please turn off the shut-off valve.

We are confident that our article will help you get out of difficult situations.
Regards Company "PROFREMONT" .
To perform all types of plumbing work, as well as the installation or dismantling of meters, you will need to leave a request by phone. 34-16-16, 503-130.

Answers to questions from site visitors. Summer. Why did the amount of Gcal of heat increase, although the amount of hot water consumed by the meter decreased? Typical situation.
apartment building, amount of Gcal of heat consumed by residents :

— in May 28 Gcal;
— in June 29.8 Gcal;

It would seem a little, but a matter of principle, because the amount of heat that the house consumed according to the total water meter is almost 200 m3 less.
Could there be such a situation?

Are metering devices lying or is the management company deceiving?

Let's analyze from the position of the law what tells us about it.

where Q DHW is the maximum heat flow to the DHW according to the specifications Gcal/h (for examples, we take 0.315235 Gcal)
Cp - specific heat capacity (kcal / kg deg) is taken equal to 1.
t hot water is the temperature of hot water, °C.
t x.v - the same, in the cold water pipeline, ° С.
Design parameters:
for water intake (t hot water) - 60 degrees C.
cold water in winter (t x.v) - 5 degrees C.
cold water in summer (t x.v) - 20 degrees C.

Water consumption for hot water supply in winter:

taking into account the density and pressure of the coolant (t=5 gr.С, Р=4.0 kgf/cm2)
G = 5.73 / 0.99 = 5.78 m3/h

The consumption of water supplied to the hot water supply in the summer:

0.8 - coefficient taking into account the change in water consumption in the non-heating period in relation to the heating one (SNIP 2.04.07-86 * 9)
taking into account the density and pressure of the coolant (t=20 gr.С, P=4.0 kgf/cm2)
G = 6.3 / 0.99 = 6.36 m3/h

The calculation shows that although according to the rules we consume less water in summer, the coefficient of reduction in hot water consumption in summer relative to winter is 0.8, in fact, water consumption from the heating network increases.

What confirms the analysis of the printout of the parameters of the heat carrier of the heat meter.

The coolant temperature has not changed, the flow rate has increased. Heat is the product of the temperature difference of the coolant and the amount of water that has passed through the heat meter.
more expense, more heat we consumed, but why did we use less hot water. The water coming from the water supply has become warmer, summer is in the yard. Thermal networks heated it up to us more strongly, which means that we diluted it more so as not to burn ourselves. That's the whole reason. We saved on hot water, consumed more cold water for dilution and, accordingly, heat. Yes, and honestly, in the summer, languishing from the heat, we bathe more, and we don’t need such hot water.

But it was still possible to save on heat. There was no need to heat the water so much. It was simply possible to reduce the coolant flow through the water heater or boiler, in the simplest case, close the valve or install automatic regulator coolant temperature.

By the way, in the example we are considering, the neighboring houses did just that, and the whole hot water from the boiler room to our mountain leaders. And they, in order to justify themselves to the residents of the HOA, had no choice but to make a scandal first to the inspectors who take the testimony, and then to the subscriber department of the heating networks who issue bills for the consumed heat. All around are swindlers, and they are just “lazy”.

By the way, remember that this is why people say about the occasion - the thief's hat is on fire, and the crook screams and blames others more than anyone else.

You can ask us a question by calling the contact , or sending it to the e-mail address

13 Apr 2010

Excuse me, but what does "the higher the floor, the hotter the water" have to do with it? The meter that you have in your apartment does not take into account the temperature of the water, but how many cubic meters of it will flow through it per unit time. So, my personal opinion is that the consumption of hot water should be more than cold, because when you wash, wash, bathe children, wash on your hands, clean up with rinsing a rag, etc., then hot and cold water do not mix in the tap in equal proportions, even look at how many turns one or another tap is open. And the water consumption depends only on the consumer, so the counters are good, and no one else! Good luck!

14 Apr 2010

The meter does not take into account the temperature of the water, but how many cubic meters of it will flow through it per unit time. So, my personal opinion is that the consumption of hot water should be more than cold, because hot and cold water are not mixed in the tap in equal proportions.

Well, of course, you don’t open the taps at all depending on the temperature, you probably with this approach that 20 degrees hot water, that 50 - the number of turns of opening the tap does not change. Do you notice that there is some correlation between the temperature of "hot" water and the volume of its consumption? There are also differences in subjective assessments of "hot"/"warm"/"cold". The counter is violet, of course, what temperature the water is flowing, it only considers what you are pouring from the tap, and you are pouring from your own subjective estimates of the temperature of the water (in ideal conditions, discarding the draining of cooled water and other "joys" of life).

21 Apr 2010

Well, of course, you don’t open the taps at all depending on the temperature, you probably with this approach that 20 degrees hot water, that 50 - the number of turns of opening the tap does not change. Do you notice that there is some correlation between the temperature of "hot" water and the volume of its consumption? There are also differences in subjective assessments of "hot"/"warm"/"cold". The counter is violet, of course, at what temperature the water is flowing, it only considers what you are pouring from the tap, and you are pouring from your own subjective estimates of the temperature of the water (under ideal conditions, discarding the draining of the cooled water and other "joys" of life).

Hello! Our family is also dissatisfied with the temperature of hot water, we manage to pay more with meters than with a tariff without meters. The real overpayment is just for hot water. The family consists of two adults, h.v. 8-11 cubic meters / month, year of production 12-14 cubic meters / month. Moreover, we both work, that is, we do not pour water during the day. In a new area, where townhouses are, a girl from a high-rise building said that she had more cold than hot consumption, in my opinion it should be so. We have a ball mixer when we wash ourselves, we turn it almost to the end, towards hot, and the girl from the high-rise building said that, on the contrary, they add more cold, since they have boiling water in hot water.
One more moment! - I read information on the Internet that counters should be placed through special gaskets, and if you make rubber or tangit-uniol thread, then the hole shrinks in size (due to compression of the rubber or thread) and the pressure increases, it turns out that 10 cubic meters actually passed through the counter, and due to the fact that the hole has become smaller, the counter shows 12-13. More or less like this.
We are going to invite the Moscow water channel, check the meters, maybe something will change.
Post has been edited by gts: 21 April 2010 - 12:31