my header tank has been overflowing for atleast a year and a half. i have tried many different things but to no avail. i have a back boiler in my dinning room and central heating and hot water run through this. my hot water tank is in a back bedroom with the pump next to it running vertically. the header tank is then above these in the loft. i have now began to wonder if the pump that is next to the hot water tank is pumping in the wrong direction. i have looked at the arrow on the pump and it is pumping up towards the header tank. could this be the cause of the overflowing tank? methods i have tried to sort this out have been to clean the entire system with fernox i have taken half of the radiators off the walls and flushed them through and also changed the ballcock in the header tank incase it was broken and letting too much water in none of these have worked
water pump. causing header tank to overflow?
- Thread starter mik118811
- Start date
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i wouldn't of said its pumping the wrong way
i take it its fully pumped system ?
does it do it on both hw/heating ?
have you had a new pump fitted ?
when did it happen after any work was done ?
when i bought the house in sept 2008 pump was leaking and a new pump was fitted in the same way as the previous pump. i think the overflow had been leaking before the pump was fitted as there was damage to the ceiling below the header tank from water. it will overflow overnight even when the level has been dropped in the header tank by about 3 inches even with the heating and hot water off. when the hot water is being heated the water flows into the header tank with a continuous flow but not enough that the overflow pipe cant get rid off it fast enough. i have turned the pump down and this lessons the amount of water going into it while it is running but is still continuously overflowing.
that don't make any sense.
can't pump over if the pump/systems not running
take it you mean over the vent pipe and not the feed pipe in the bottom.
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i know that bit doesnt make sense but that is what it did i only tried it once but i had water and heating off when i went to bed and i turned it off until i had checked the level the morning after, that was before i replaced the ballcock as a precaution but the problem still persists so i presumed it wasnt the ball cock leaking. yes it is the vent pipe over the top that i see the water going into the header tank from
and its the f/e tank not the cws ?
useally only leaves a faulty coil but that will useally backflow by the feed pipe
useally only leaves a faulty coil but that will useally backflow by the feed pipe
there are 2 pipes in the airing cupboard with red circular handles one is at the back behind the hot water tank the other rund upwards to header tank i presume header and cold water tank have the same in pipe for cold water but two seperate feeds i presume this is normal?
The one that goes into your hot water cylinder, turn that red wheel valve off (clockwise). It may be stiff so be gentle/careful! Then if turns off ok open up a hot tap, and see if the hot water tap flow soon stops.
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