what questions do you want answering?
How do I speak to you?
My house has an annexe to it. One central heating boiler serves both house and annexe. My son and I noticed that the water meter dial was going round quite fast when there was nothing being used, also the central heating tank in the roof was draining as the ball valve was operating. By switching off the central heating to the house the meter stopped turning and the ball valve in the roof closed. I called British gas under my HomeCare policy. They came with Dyno-plumbing but were not able to locate a leak but agreed there was one on the return pipes from the downstairs radiators in the house which pass into the annexe. There is no sign of a leakage to the upstairs radiators in the house as the downstairs ceilings are dry.
The floors are concrete.
The floors are of concrete in the house and annexe.
The boiler is in the annexe.
The boiler has seperate controllers for the house and annexe which can be operated individually
The Dyno-plumbing man operated the thermal imaging camera but it could not detect heat of the pipework because of the insulation under the floor. House central heating was isolated by switching off the central heating switch on the house programmer
Yes there is the ball valve on the header tank,. I slightly mislead you before because with the central heating to the house switched off there is still a very slight draining out of the header tank. But as soon as the central heating is switched on the leak becomes apparent and the meter dial rotates. Annexe heating and hot water is not affected by the leakage and can be run without any loss of water in the header tank.
Yes the pipes are buried in the screed and I know the sealer may prove inadequate but as you say it might be worthwhile.
There are 11 radiators in the house, 6 upstairs and 5 on the ground floor. and 4 radiators in the annex.
To redo the downstairs pipework in the house is what British Gas say is the only answer. It is not covered on my insurance therefore I am faced with the ghastly sum of £5689 to put things right.
I would like to finish for the night. I am 82 years old and am a little exhausted right now, can we continue in the morning
Good morning Toby, thanks for your sound advice. I have already sounded out one or two good plumbers. As I am going to gambol with a sealant, is FERNOX the one you would recommend?