To JohnD,
Thanks for the reply.
The radiators appear in good condition. The water was hardly discoloured when I drained the system and I used a cleanser and put an inhibitor in when I installed the TRVs.
I also completely cleaned the F&E tank when I did the install, taking care that no...
Thanks for the reply croydoncorgi.
I'll check for leaks around the pump tonight. There are isolation valves above and below the pump so I can take it off and clean the connections which do have some residue showing on the exterior of the pump itself and I suppose could indicate small leaks...
Thanks for the reply.
There is an air bleed at the top of a short vertical length of pipe that connects to the top of the 3 way valve. I have bled it repeatedly, and usually get small amounts of air out of it. I have opened it more fully on several occasions and let it run for several minutes...
Hello all,
I've spent several hours browsing through previous posts to see if I could get some direction, but none of the suggestions in them has allowed me to remedy the problem.
The system is open vented, gravity fed with a Potterton Suprima combi boiler, unknown (no label) hot water...