hi was wondering if anyone could possible help?
i got called to look at a back boiler with a pimatic cylinder in an old house the central heating is working fine however some rads are piping hot and others according to the owner have just stopped.
At first i thought they were air locked but no air and no water from the rads then i thought it was sludge but i removed a couple and no sludge clean as ought. i have a feeling its a really old one pipe system and may jsut need balancing however does anyone have any ideas plase
