Toilet problem

billozz · 31 Mar 2026

My toilet is constantly having water run from the cistern to the bowl, what could be causing that please, I've tried to add a video but the site wouldn't let me. Thanks

Alec_t · 31 Mar 2026

Flush valve leaking; or water level too high and internal overflow operating.

CountryFan · 31 Mar 2026

billozz said:
I've tried to add a video but the site wouldn't let me. Thanks

Yes, unfortunately you have to use a 3rd party site, eg YouTube. Maybe post a photo of inside the cistern?

billozz · 1 Apr 2026

Alec_t said:
Flush valve leaking; or water level too high and internal overflow operating.

Alex, can that be fixed in not a plumber lol

billozz · 1 Apr 2026

billozz said:
Alex, can that be fixed in not a plumber lol

The water level is not high it's not really getting very high at all

Alec_t · 1 Apr 2026

billozz said:
The water level is not high

If the water isn't overflowing then presumably the flush valve is leaking. Post a well-focussed pic of the inside of the cistern and someone here will likely recognise the flush valve brand and advise on its treatment/replacement.

billozz · Thursday at 8:11 PM

Alec_t said:
If the water isn't overflowing then presumably the flush valve is leaking. Post a well-focussed pic of the inside of the cistern and someone here will likely recognise the flush valve brand and advise on its treatment/replacement.

The water is coming through where the orange dot is if I lift the float (yellow dot) it stops but within a minute or so it starts again, any advice appreciated.

CountryFan · Thursday at 8:19 PM

Looks like an Ideal Standard/Armitage Shanks

billozz · Thursday at 9:15 PM

CountryFan said:
Looks like an Ideal Standard/Armitage Shanks

Thanks, any ideas what's wrong with it?

Elkato531 · Thursday at 9:57 PM

Flush valve seal needs replacing

Pardon our interruption...

Alec_t · Thursday at 10:34 PM

billozz said:
if I lift the float (yellow dot) it stops but within a minute or so it starts again

Then it looks as though the fill valve is at fault and the water level rises until it reaches the overflow 'window' in the flush valve.

billozz · Friday at 6:19 AM

Alec_t said:
Then it looks as though the fill valve is at fault and the water level rises until it reaches the overflow 'window' in the flush valve.

Thanks, is that easy to do, it do I have to take the close coupled bit of the toilet off to do it,

Alec_t · Friday at 11:14 AM

To replace the fill valve you would need access to the underside of the cistern, unless the valve is a type which enables the in-cistern part to be removed by some twist-and-lift mechanism (which I doubt; but I'm no plumber and I'm not familiar with the fill valve type shown).

denso13 · Friday at 11:22 AM

billozz said:
Thanks, is that easy to do, it do I have to take the close coupled bit of the toilet off to do it,

Not usually, but it depends on the design of the pan. A photo of the bottom of the fill valve on the underside of the cistern would reveal all.

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Toilet problem

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