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sugmi700

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sugmi700

Tapping in heating

I have a tapping sound coming from my 3 way valve. I have changed the body and head and it is still there. I have TRVs all round and the system runs with a pressure relase bypass. I can vary the sound...
14:07 Thu 29th Jan 20095 answers, last by sugmi700 17:20 Fri 30th Jan 2009

Only 1 question