How to Remove a Close Coupled Toilet Cistern
REMOVING CLOSE COUPLED CISTERNS
Lift off the disconnected cistern to gain access to the siphon nut and, on a siphonic pan, the seal around the ‘puff pipe’ passing down into the pan.
On a siphonic pan, check the seal around the ‘puff pipe. Fit a new one so that it is pushed up, as the cistern is replaced, to sit over the hole in the pan.