The overflow pipe is fixed to the bottom of the cistern and water is leaking past the joint.
I have tried to fix it but because of the position of the toilet right in a corner, I can't get a good grip on the plastic collar that pulls the pipe down, making the seal - any advice gratefully accepted. There is a rubber washer on the inside of the cistern and I wrapped plumbers tape around the pipe that protrudes through the cistern before tightening up the collar but I could not get the collar tight enough.

Ayesha's Granddad, July 2008

try using a tap spanner to tighten it up properly but firstisolate the water,drain the cistern,remove and clean under the washer to ensure a good seal,tighten and fill with water and that will do the trick, ptfe tape will not seal this problem.

paul, July 2008