I had to visit a house today, as they had a water leak. Or rather, their
downstairs toilet keeps getting wet.

I had a quick look, expecting to find a dripping pipe, but couldnt see
any fault on the visible pipework.
The water is all over the toilet walls/ceiling downstairs, and has been
there for a while, as there is mushroom like growth on the ceiling.
Directly above is the upstairs toilet and sink. There were maybe 20
droplets in one corner of the room, and the rest of the room looked like
someone had just had a shower in it.
The outside wall is also wet from just below window height.
Unfortunately, upstairs is covered in laminate, so I couldnt take up the
flooring to see if one of the pipes is leaking from between the floor
onto the ceiling below.

I had a poke at the plaster ceiling, but it all seemed quite solid.
At the rear of the downstairs toilet is an unheated small room (3' sq.),
which has a slight dampness at the ceiling, but is otherwise dry.

My main thought was there must be a dripping pipe under the upstairs
floor.Though the ceiling doesnt look like it has had water running
through it.


My query-
Has anyone come across such a bad damp problem that has been caused by
condensation?
Am I missing something?
Thanks
Alan.
--
To reply by e-mail, change the ' + ' to 'plus'.