We have a small, rectangular hot water tank in the loft which has started to overflow via the overflow pipe outside. I've had a look in the tank and can see a ballcock and that hot water is being fed continually into the tank (this could be normal considering the heating and hot water are on at this time?).
I assume that when the tank is full somehow the hot water feed should be turned off and this is what is not happening. Any ideas what I should be checking to stop the overflow?
We have a gas boiler, hot water cylinder in the airing cupboard, and two tanks - one large cold tank, and this small hot tank - in the loft if that helps at all.
Many thanks in advance!
I assume that when the tank is full somehow the hot water feed should be turned off and this is what is not happening. Any ideas what I should be checking to stop the overflow?
We have a gas boiler, hot water cylinder in the airing cupboard, and two tanks - one large cold tank, and this small hot tank - in the loft if that helps at all.
Many thanks in advance!