I turned off my mains water to fit a new tap, when I turned it back on I can't get any hot water, the header tank is full but no water flow, when I turned the gate valve back on the dial just keeps turning in either direction, does anyone know if this is the probable reason for no water
Gate valves
- Thread starter gsbrn
- Start date
Your GV is probably furred up and stuck. These are meant to be turned on an off every now and again to keep them free, but no one does.
Do you mean you turned off the mains stopcock and the gate valve to the hot water cylinder?
It’s not normal to have a gate valve as a mains valve and in any case it won’t stop the hot water until the cold water tank is empty.
Personally I’ve found gate valves seize up and won’t turn, if it’s turning but not undoing maybe the stem is worn out / corroded.
Have you sprayed it with a lubricant?
Failing that a bit of heat on it might help.
This can happen if the spindle snaps.
A broken spindle can push shut, but not pull open.
As above snapped spindle replacement valve only cure I'd fit a decent lever valve.
I used to use gate valves because, when fully open, they do not impede the flow.
But you can now get full-bore ball valves which are neater and will withstand high temperatures. The ones with a T handle are simpler than the ones needing a big screwdriver.
Pegler are particularly good.
But you can now get full-bore ball valves which are neater and will withstand high temperatures. The ones with a T handle are simpler than the ones needing a big screwdriver.
Pegler are particularly good.
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