Recent content by samday

the shower pump is salamander. sorry, don't mean to make you mad. thanks for your help.

When shower pump is ON the problem occurs, so thus only when hot.... Don't know why this would affect the vent pipe though.

the shower is fed from cold from the tank and hot from the cylinder though not by mains.

vent pipe rises auite a way above cold tank before bending over into it. i'd say about 1/2 metre.... i have noticed now it only happens when the shower pump is on if that matters? when cold it does not happen. sorry for all this guys.

no yellow pump, just a red one which says grundfos. think this is for he heating circuit though.... problem is inermittent i think, although i only noticed it by chance today.

secondary circuit? my house is a normal 3 bed semi.

water is coming from the vent - and then i presume water is entering via the 2 outlets at the bottom of te tank, hence the watwer not getting to overflow level in the cold water tank.

the cistern is not overflowing from the overflow pipe, just from the vent pipe. I do not know why.... i have not capped it off, that would be dangerous. have not had anything done recently.

when i shut off the main it does stop. but after a while. i also have a shower pump is that makes a difference?

water temp from taps seem normal. the small tank as a vent pipe too and that is fine.

yes the hot water is heated by a boiler. it is an olde boiler. a potterton flamino. it seems fine though. i had h/w on today thismorning and this evening.

the small tank is on the same level as the big one, but is shorter, so the water level would be lower. quite a lot lower. there is no valve on the cold feed, except a gate valve and that is fully open as we have hot water from all taps and at a normal flow as usual. i turned the mixer to...

Hi again, thanks all for replying The vent pipe is over the large tank, the cold water tank that supplies the hot water cylinder and bathroom cold taps. The vent pipe, that u bends over the tank is spilling water.

i heard about this potential problem, but surely the water would go into the cold water tank via the cold feed to the hot water cylinder and not over the vent pipe?

have you turned the boiler stat down? maybe the water is not circulating through the boiler fast enough and causing the sounds. try your pump speed up a bit? also, is the pump sounding kind of off balance at all??