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- 6 Jul 2004
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About 2 years ago I noticed water coming from the overflow of my central heating header tank.This tank is located in the loft but there is no access to it. The previous owner put all the water tanks in the tiny loft and then put the roof on!! (Honestly). I reasoned that if I shut off the stop cock to the tank the water level should only reduce very slowly and I could turn it on periodically to top it up.This seemed to work for the last 2 years. Every couple of months I would turn the stop cock on again and a little water would flow in to top the level up and then it would shut off after a few seconds. About 2 weeks ago I turned on the stop cock as usual and to my surprise loads of water (I would guess 3 gallons or so) rushed in to fill the tank. I did the same thing again a week later and again loads of water rushed in to fill the header tank.
I have looked at all the CH pipes and radiators and I cannot see any leaks anywhere. I'm sure if 3 or 4 galls of water leaked out it would have shown up by now. So I am puzzled. Where is the water going.
I have looked at all the CH pipes and radiators and I cannot see any leaks anywhere. I'm sure if 3 or 4 galls of water leaked out it would have shown up by now. So I am puzzled. Where is the water going.