sorry i had to remave the valves from the main pipe work as they were stuck onto the pump to tight to work on them in place so didnt have to close them in first place.
Erm wow loads of help thanks everyone,,
The reason I think it sucking in air is the noise and whenever I have to shut the system off because the knocking is so violent after a few hours of running. I can bleed the highest radiator for about 5 mins then leave for an hour then have to do...
Hi there my plunmber mate hasnt got time hes sflat out constantly and he is just as tumped which is why he said just turn it into sealed system. Cost is a slight factor but if needs must we will get another plumber in but if anything it has me intriguid as to why after 13 years of working...
Hi my mother in law has an open vented system running three radiators no hot water. the pipes froze and split last winter and as it is holiday cottage i didn't notice till the pump hads burnt out i replaced the pipes and the pump (my friend a plumber came and checked it was all alright).
It...