DIY Doctor

closed system pressure

Postby whitey.37 » Wed Dec 24, 2008 4:36 am

Having fitted a new rad I think there is an air lock in the loop, and the pressure has dropped to bellow 1/2 bar. How do I raise the pressure on a closed system boiler?
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Simply Build It

Postby plumbbob » Wed Dec 24, 2008 1:25 pm

Through the filling loop which may be inside the boiler (accessible from underneath) or by a separate braided pipe which is usually sited just below the boiler.
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Postby Steve the gas » Wed Dec 24, 2008 5:01 pm


With the filling loop/key!

Boiler make/model?
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