I have a Halstead Quattro gold boiler which i'm attempting to change the diverter value. Before i can change this i have to remove the pump which means closing the CH value. It also says to drain the system using the drain plug on the return pipe ???
Can someone tell me where this is or what i'm looking for or is it easier to switch off the water. open then taps and drain the whole system ???
Can someone tell me where this is or what i'm looking for or is it easier to switch off the water. open then taps and drain the whole system ???