We have a fully pumped system - Potterton Suprima. System was extende two years ago into an extension. pirping used in extension is Hep2o. Rest is copper.
Have a bisque radiator in the bathroom which seems to need bleeding every day as do two other but to lesser extent. The bathroom rad is the one nearest the pump. I have noticed a small amount of corrosion on the outside of the radiator close to where a pipe weld would be.
Question is why should we need to bleed so often. I have seen here before the possibility of air getting into the system, how would I trace this or could it be the rad is corroded allowing a little bit of air in which then accumulates over the day.
P.S. SHoudl rads and pump be beld with system operational or off?
Tks as usual.
Have a bisque radiator in the bathroom which seems to need bleeding every day as do two other but to lesser extent. The bathroom rad is the one nearest the pump. I have noticed a small amount of corrosion on the outside of the radiator close to where a pipe weld would be.
Question is why should we need to bleed so often. I have seen here before the possibility of air getting into the system, how would I trace this or could it be the rad is corroded allowing a little bit of air in which then accumulates over the day.
P.S. SHoudl rads and pump be beld with system operational or off?
Tks as usual.