Leak in Open CH system

Postby aongus » Thu Jan 17, 2008 8:50 pm

Hi There,

I have an open CH system, with a GAS boiler in the shed. When the heat is on I don't have a leak. When the heat is off, I have constant running water in the attic where the top-up tank is situated. Tried some leak seal, worked for some while, but leak starting again. A little bizarre ! No sign of leak in house. Any thoughts on the problem or how to isolate the leak. I don't think it's a leak from the CH System into the Hot Water Cylinder, as it runs continuously and there is no sign of water from overflow pipes....

Comments welcome....

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Joined: Thu Nov 01, 2007 8:07 pm


Simply Build It

Postby bjbiker » Tue Jan 29, 2008 8:53 am

It sounds like your c/h pump is over running and isolation valves closed causing pumped water going into your header tank
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Joined: Mon Jan 28, 2008 4:44 pm

Postby aongus » Tue Jan 29, 2008 11:21 pm

Thanks for the reply, I've followed up with a plumber and looked at the tank, it's not over pumping, but I have a leak approx. 2-3 litres a minute, no sign of the leak in the house, getting someone in with listening / thermal eqm.
Posts: 5
Joined: Thu Nov 01, 2007 8:07 pm

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