I have had an intermittent overflow from my feeder tank in my flat for some time. One plumber changed the ball valve and another changed the setting on the central heating pump.
I have been staying with a friend during the lock-down. Before I left I turned off the boiler and closed the stopcock where the water supply to my flat enters the building, believing that that would stop water entering the feed tank and so prevent any overflow.
I have now been told that there's an overflow again.
I had thought that the water supply to the feeder tank was from the mains. Could it in fact be from the water storage tank that sits above the hot water cylinder?
Or could there be any other way that the feeder tank is filling despite the mains supply being off?
I'd be grateful for any ideas.
I have been staying with a friend during the lock-down. Before I left I turned off the boiler and closed the stopcock where the water supply to my flat enters the building, believing that that would stop water entering the feed tank and so prevent any overflow.
I have now been told that there's an overflow again.
I had thought that the water supply to the feeder tank was from the mains. Could it in fact be from the water storage tank that sits above the hot water cylinder?
Or could there be any other way that the feeder tank is filling despite the mains supply being off?
I'd be grateful for any ideas.