Airlock preventing toilet cistern filling

by the seaside

Hi there

We recently had a mains leak leading to no water supply for a couple of days. Following that there was air in the water system but the air passed through the hot and cold water taps and showers when they were turned on. We have two toilet cisterns that are not filling up, one on the first floor and one on the second floor. As this occurred immediately after the water was cut off, my bet is there are airlocks. If it is relevant we have a water pump on the ground floor.

My plan is to connect a hose to the kitchen tap or outside tap and also to the toilet inflow pipe and use the pressure to force the air through - hoping that one and two storeys height difference leaves enough pressure. Is this the right plan? Is there a better idea?

BoobeR

Did you check the stopcock in the attic tank? Could be gravity fed and it could be stuck in the up position. Had same problem myself here a while ago.

Tom44

If the taps in the rooms are working then probably it's not an air lock.
It might be dirt in the ballcock filter, a lot of modern toilet ballcocks have an integrated fine mesh filter.

bonzodog2

I had an issue with a cistern a while back, not filling, turned out to be a small piece of plastic had got stuck on the inlet side of the ballcock.

by the seaside

Thanks for the answers. We're a fairly new build so the on-site plumber came and cleared the airlocks around each toilet for 20 quid (and they were airlocks).