by nitro23456 »
Thu Feb 21, 2008 5:52 pm
there are only three possible places that it can be leaking from (assuming it is a modern close-coupled which overflows into the pan).
These are:
- the cold feed in
- where the cistern sits on the pan via the donut sponge washer
- where the soil pipe fits to the toilet at the back.
You say it is intermittent so it is unlkely to be the cold feed in as it would be all the time.
I cant imagine you cant see the exit to the soil pipe so I would assume it is where the cistern sits on the pan, in which case you will have to drain it down and refit.