B
buckley plumb
been to another of these where the filling loop valves are passing and the boiler pressures its self up to mains water pressure .this is the 3rd in the past 6 months .the valves and the filling loop pipe amount to £185 this is mad . last one i capped the flexi and one side of the valve and fitted an ext loop .glow worm should make a kit to blank off the loop so an external can be fitted.