Jan wrote:
Where are you located? This sounds like a wall-hung tank
with a metallic tube (pipe) connecting the tank outlet
to the bowl "spud".

If you're in UK, post to: UK.D-I-Y

Hi Jim,

Thanks for your reply.

I am staying in Malaysia.

The pipe connecting the tank outlet to the bowl is not metallic but
plastic.
There is also a thick rubber glove-like cover which holds this pipe to
the bowl. Most times, this rubber cover is 'pushed out' by the water
pressue when I flush the toilet.

I hope this gives you a better picture of what the problem is.

I would appreciate your advice.
Hello dear. I hope you don't mind me jumping in here with my 2ps worth. I
had exactly the same problem. My flush used to connect perfectly then my
wall cistern cracked and I renewed with a temporary plastic one. This was
lower and slimmer than the original and the outlet to the toilet was at a
slightly different angle and from then on the rubber on the back of the
toilet leaked or the pipe jumped out every time I flushed. I consulted a
plumber who suggested I squirt sealant into the rubber and around the pipe
but that didn't work. I think the cistern needed to come out from the wall
more to get the right angle for the pipework to enter properly. In the end I
gave up and put a jubilee clip on the rubber and pipe holding them together.
There it has stayed for ten years, not very pretty but as the lid of the
toilet is always up no one notices except the cleaner, and that's me. It
really is about time I changed it, I was supposed to be having the modern
type fitted but you know what it is always something else to do...