The water meter is spinning, despite the twisted taps and the lack of leaks

Hello, I expose the subject, maybe someone "enlighten" me, I know the subject of plumbing a bit, but something that I have at home is probably not even dreamed of philosophers!

The taps are turned off, no leaks can be seen, I live in the house for 3 years, the valves in the cistern are checked, and yet the wing in the water meter gently turns! I turn off the valve in front of the water meter, of course, the propeller stops, and now the curiosity, when I light the stove and the temperature in the boiler increases, then the propeller stops completely. In the first phase, I thought that the hot water boiler was airing, but this is not because when it expires in the oven, the propeller is spinning all the time, when I light it, gentlemen, what's going on, because I was really stupid, and I was about to start forging the floor to choose into the tube with water, will someone suggest something?



greetings

What is your CO installation? Take some pics and upload.

Installation in an open system, coal stove, boiler with pressure equalizing tank attached.

Do you have a tap outside or power to another building?

Close the boiler feed valve, if it stops spinning, the boiler is probably broken. You can still check if water is overflowing through the expansion tank.

Exactly like closing a valve, it stops spinning. And what could be damaged in the boiler. The boiler is only 3 years old.

From what I can see you have a double wall boiler. There is a micro hole on the connection of the DHW jacket and the CO jacket. The situation is dull because the hole can get bigger at any moment.
Did you replace the anode in the boiler as ordered by the producer?

No, I did not mention. How would I understand that? If I light it in the oven and the water is about 60 degrees, the counter stops spinning and on a cold one begins to spin. It stops when I turn off the water admission valve to the boiler. So what would it be like if it were a micro hole? Why doesn't the meter work on a hot one and on a cold one? So what is the boiler exchange waiting for?

If you have bad water, the boiler may as well eat corrosion. The magnesium anode significantly delays this process.
The counter stops spinning after firing because the metal expands to the point where the hole seals.

stawpol2 wrote:

So what is waiting for me to replace the boiler?

Yes.

Thank you for the hints, better boiler replacement than demolition at home, we can close.

To be sure, close the running water supply, disconnect the central heating pipes from the boiler, and if the water from the mantle is ordered, open the water supply and see if the lower water connector starts flowing out of the central heating pipe.

And by the way, 3 years and a hole in the CWU?

stawpol2 wrote:

3 years and a hole in CWU?

Material, manufacturing or corrosion defect.

I had a case that after a year the tee in the floor cracked. More than 60 cubes of water leaked, and there was not even a trace of moisture in the basement. Water installation completely new. So that there are no miracles, there must be a leak. And I recommend installing a diaphragm vessel for pressure stabilization.

Magister_123 wrote:

The counter stops spinning after firing because the metal expands to the point where the hole seals.

Could it be? If it is a micro hole, it also increases under the influence of temperature.
That would indicate a micro leakage under the seal. The metal, which expands under the influence of temperature, compresses the gasket more.

vodiczka wrote:

Could it be? If it is a micro hole, it also increases under the influence of temperature.

One theory and practice the other. I have been working in the boiler service for a few years and have had various situations (such as above). I am not 100% sure that the diagnosis is correct. The more so that all takes place via the Internet.

Magister_123 wrote:

One theory and practice the other.

If the theory did not agree with practice, then contraction joints would be impossible.
I do not deny that when the boiler stops, the water stops but the mechanism of this phenomenon is different than you wrote

Magister_123 wrote:

the metal expands to the point where the hole seals.

And yet it turned out that the boiler had accumulated air, unscrewed the screw connection at the DHW outlet, some water flew, the clock stopped spinning.