Search results

PS I have bled all the rads. I have read on some more posts about bleeding the pump. any one have some hints on how to do this. I have two isolations valves either side but no bleed nipple anywhere near the pump? thanks

I have Potterton boiler that is very noisy. The system is gravity fed. System has been drained and also Sentinel X200 has been added. I have also used Other de-scalers and drained the system twice before. The noise seems to have got worse since I added thermostatic radiator valves. I have...