I had to replace the circulation pump on my central heating so I drained the system (no isolation valves installed either side of the pump).
I have a sealed system
Boiler is a Potterton PrimaF
In the airing cupboard I have an expansion tank with a blue hose connected to the mains wtaer supply and to the regulator on top of the expansion tank.
I have tried opening the stop valve between the mains and the expansion tank but this just pressurises the tank to 2bar.
My question is - how do I re-fill the system? What is the secret?
I have a sealed system
Boiler is a Potterton PrimaF
In the airing cupboard I have an expansion tank with a blue hose connected to the mains wtaer supply and to the regulator on top of the expansion tank.
I have tried opening the stop valve between the mains and the expansion tank but this just pressurises the tank to 2bar.
My question is - how do I re-fill the system? What is the secret?