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22-06-2008

if its a gravity hw, pumped heating system.
sounds like the gravity check valve is stuck open.

22-06-2008	#4 (permalink)
ajs heating Guest Posts: n/a	Re: Help! if its a gravity hw, pumped heating system. sounds like the gravity check valve is stuck open.
ajs heating Guest Posts: n/a	Last edited by ajs heating; 22-06-2008 at 07:42 PM. Reason: .