Many thanks for your replies.
I found a slight leak on a rad valve and decided to drain the whole system to see if I could clear any particles in the prv as suggested.
Fixed the rad valve so no slight leak from there which could have caused some pressure drop but even better when I filled up...
Hi
New to this type of forum so hope this reads okay
I have a Glowworm Xtrafast 120 Combi Boiler that was fitted in Nov 03
About Jul 06 I noticed a loss of pressure and water coming from the safety valve vent pipe. Had a new safety valve fitted and it seem okay until heating put on again as...
