COLD water air lock in upstairs bathroom

[Jimbo]

Hi,

I'm replacing my bath, so have drained down the water, removed the bath, and capped the hot and cold water bath pipes with push fit stop ends.

When I refill the system, no water comes out of the basin cold tap or toilet ball valve. Hot water is fine.

Previously, when the CWS tank has run dry (too many baths/showers etc.), the way to clear the airlock has been to run the bath cold tap. Obviously I can't do this now as it's capped. If I'd remembered I'd have put an isolating valve on and run some hosepipe out of the window. But I didn't remember

I could drain down the CWS tank again, but no doubt there's some water in the pipes which would come hurtling out when I popped the cap off.

Is there an alternative?

Thanks
Jim

 

[HERTS P&D]

Place hand under bath mixer and turn on hot and cold water taps (on bath mixer) You should do this for at these 30 seconds. Make sure you fill up the toilet cistern with water via a bucket first.

Then turn off both taps and remove your hand, turn on cold water tap on bath and see if the water runs.


While doing the bath mixer hand job, make sure all other taps are closed.

Andy

 

[4xpaws]

Bath mixers been removed along with the bath & supply pipework capped.

Perhaps kitchen mixer's a better bet.

 

[sooey]

That will only help with the hot side, you want to sort out the cold.
You can either run a hose from your kitchen cold up to your basin cold and push a bit of water through, or use a vacuum hose on the basin cold to try and suck some through. Not too much if it's a normal vac obviously, a wet vac is ideal.

 

[4xpaws]

Thanks Soooey. basin mixer's a better bet! or if its pillar taps and you've no wet vac, get your lips around the spout and suck the water through, or gaffer tap a bit of hose pipe to spout and suck.

 

[Jimbo]

Thanks for all the replies - hosepipe from kitchen cold tap did the trick.

J

 

[caffeinedealer]

That will only help with the hot side, you want to sort out the cold.
You can either run a hose from your kitchen cold up to your basin cold and push a bit of water through, or use a vacuum hose on the basin cold to try and suck some through. Not too much if it's a normal vac obviously, a wet vac is ideal.

Only registered to say thank you for the wet vac idea. The whole ordeal was solved in less than 5 minutes including the compulsory celebration next to the water flow.

I'm eternally grateful, I hope you're doing well.