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- 20 Mar 2003
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F&E tank filling up with HOT Water + overflowing. All rads are hot Home Service engineer recently changed normal valaves on radiator to TRV's. ByPass is open. Tank has around 1m of head, as boiler is situated in the 1st floor bedroom cupboard. Cold Water Cistern & F&E tank are on the base level.
What would be the cause of hot water pumping over into the F&E tank?
What would be the cause of hot water pumping over into the F&E tank?