central eating gauge has gone to 3.5 need to re-pressurise?
gauge has gone to 3.5 when i turn hot tap on with the CH still on it goes to 4 and above silver pipe conected to pipes did bleed some water from a Rad but still gauge has not dropped what can i do
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.