Recent content by ianfirm

thanks Nige F I was not sure if AAV could be used on domestic hot water. Now I know. Cannot run vent pipe as this would have to be routed through the innacessible area. Once in there I can hopefully re-order the pipe run so that there is no chance of an air lock. So now I will have to...

hello there, I live in an old house and suffer with a recurring airlock in the 22mm hot feed to the downstairs loo. The problem pipe is at present partly innacessable and I have to bleed off the air once a week in a roof void using the bleed screw on a one way valve. Can I fit a B and Q...