Replacing a cistern

Plumbing covering hot and cold domestic systems, drainage and related topics

Replacing a cistern

Postby Philip Wright » Mon Feb 27, 2012 10:53 am

I am trying to replace a cistern on a low flush toilet, but I cant get to the locking nuts underneath. There is a ceramic 'thing' which covers the gap between the cistern and the pedestal. Can anyone offer some advice please?


Philip Wright
Posts: 1
Joined: Mon Feb 27, 2012 10:19 am

Re: Replacing a cistern

Postby Tommy » Mon Feb 27, 2012 8:05 pm

Hi Phil
There are four fastenings that hold a low flush cistern in place, two screws through the top of the cistern which hold it to the wall and two threaded bolts which slide onto a bracket fixed to the underside of the cistern which then pass all the way through the ceramic "thing" as you put it and have either two wing nuts securing it or two 8mm nuts.
The ceramic "thing" is actually the support platform for the cistern and is part of the toilet bowl, look underneath the ceramic platform and you will see the threaded bolt ends.
But remember when you get the cistern off you will need to replace the large sealing washer between the underside of the cistern and the ceramic platform, this washer seals the gap and fits over the syphon outlet which you will see when the cistern is removed, there are two common sizes of washer so make sure you get the correct size, they are inexpensive to buy.
Hope this helps.
Posts: 27
Joined: Wed Mar 19, 2008 12:09 pm

Return to Plumbing




© Copyright 2013
Reproduction of any content on this website is strictly forbidden. - Privacy Policy