Hi

Noticed some water leaking from under the cistern when I flushed
the loo today.

Took it all apart and there seemed to be a lot of limescale around
the conical white rubber seal that is clamped by a large white
plastic nut under the cistern. This is the seal where the internal
siphon connects to the 90 degree tube that then connects to the back
of the pan.

The rubber seal has gone a hard with age, so the original profile
is no longer obvious. When new it was flat uppermost where it
presses up under the threaded outlet under the cistern, and
tapered downwards where is engages with a 45 degree angle inside
the plastic compression nut.

I haven't be out to see if I can get these washers on their own
so I might just change the whole siphon unit, and this is
confusing. Toolstation have three or four that might fit,
one has an adjustable section, but an Opella dual flush
fitting comes in four sizes, 7.5, 8, 9 and 9.5 inches.

My question is what are these inch measurements made ?.
Is it the height, if so measured from where to where ?.

has anyone replaced the conical seal with a normal O ring
successfully ?.


Regards

Andrew