not sure what would it look like? and be located is it like a gate valve or the isolation valves with the flat head screwdriver thing? Do not have a clue where it would be. Would a microbore system have one of these.
Thanks again
Hi
I have 18 year house with Netaheat boiler located downstairs, at present I my rads upstairs get hot after about 1/2 hour and downstairs get no heat at all. I have checked they are all turned on. My mate came round late last night and changed the pump but there is no change.
The system...