ShaunCorbs Super Moderator Staff member S. Mod Plumber Gas Engineer Subscribed Messages 34,371 Solutions 2 Oct 12, 2016 #41 jambo said: not quite getting what your meaning if you could elaborate on it please would be appreciated Click to expand... The system got an external filling loop / return filter ??
jambo said: not quite getting what your meaning if you could elaborate on it please would be appreciated Click to expand... The system got an external filling loop / return filter ??