what flexi pipe are we talking about
is the filler loop leaking ??????
most boiler's will have isolation valves fitted at both ends of the filler loop, look for a tap head type or a screwdriver type head that you just turn 90 degrees to isolate them .
wirecutterman
January 2010
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.