On 2/17/2017 9:50 PM, Roger Mills wrote:
On 17/02/2017 20:24, Graham. wrote:
On Fri, 17 Feb 2017 10:50:25 -0800 (PST), Rednadnerb
wrote:

My neighbour has a pool of water that mysteriously appears on her
bathroom floor at random times usually once or twice a week.
It appears on the floor in the 18" space between the toilet and the
bath and appears even when she is not in the flat.
I strongly suspect that it is coming over the top of the pan as I
have found the lip to be wet (she is in a 1st floor flat so is this
even likely?)
It has been going on for ages, I have brilliantly suggested a time
lapse camera but she won't have that in her bathroom. I have also
suggested putting one of those blue things in the cistern.
Any other ideas as to how to get to the bottom of the mystery pool of
water?

Thanks

Brendan.

I had the same thing, It was one or two drops every flush dripping
from one of the bolts/wingnuts that secure the cistern to the pan, but
there was some condensation as well, and I blamed that at first.

A new close coupling kit, and doughnut sorted it.

Yes, if it's a close-coupled cistern, I would suspect a leaking doughnut
- which allows a small quantity of water to escape each time the toilet
is flushed.

Go and flush the toilet a time or two, and have a close look at that area.

I was going to suggest that whether it is close coupled or not. One way
I sometimes detect small leaks is to wrap a couple of sheets of toilet
paper around the suspect area and see if it gets damp. Works around
radiator valves too.