Concealed cisterns - push buttons

[audi321]

Hi all - I need to replace my concealed toilet cistern, but the cut out for the push button is quite large (65mm diameter) and all the ones I can see to replace it with are around 38mm.

Do they all work the same way? i.e. could I retain the buttons from my existing one, and just put the pipe connecting it from the new one up to it? Or doesn't it work like that? Seems to create a push of air or something when I push the button.

Thanks all.

[Aletank]

My parents had a similar issue, they got a plumber out who said they needed a new cistern. What the plumber done was to leave the old button in place & made a new whole for the new button. It now has 2 buttons but only the new one is connected, not ideal but saves having a hole.

[markiii]

i had a similar issue, I ended up soaking the whole button assembly in white vinegar for 24 hours and it started working again fine

[MDT]

yep they all work the same way, if you feel the need you can test it by replacing it with a syringe, I tested one for about 2 months before I got round to finding a proper replacement.

[miroku1]

Screwfix do larger diameter pneumatic cistern buttons as do a number of other manufacturers

[audi321]

MDT said:

yep they all work the same way, if you feel the need you can test it by replacing it with a syringe, I tested one for about 2 months before I got round to finding a proper replacement.

I’m afraid they don’t all work the same way.

Turns out some (like mine) are air powered (pneumatic) and some are cable driven (like the one I just bought from B&Q).

At least now I know I can do some more specific searches.