I need to replace the valve inside the siphon. All the sites I've read, and my DIY book, say to release the siphon by releasing the nut under the cistern or on the flush pipe, but this is a coupled unit and I can't find any nuts under the cistern - how do I release the siphon? Don't know what make it is.

Ros, September 2010

are the nuts on the inside of the cistern, you should be able to buy new one from any good diy store or go to the manufacture

phil, September 2010