On Jan 7, 4:03*pm, NT wrote:
On Jan 7, 1:50*pm, "TonyB" wrote:





"Usenet Nutter" wrote in message

.. .

On Wed, 6 Jan 2010 15:46:57 -0000, "Tonyb"
wrote:

I have just fitted a new sink in my cloakroom which has one of these
click/clack waste fittings, with the overflow running into the slotted
waste
fitting *The plug fitting drops through the hole in the sink, with a
plastic
washer between the plug and sink, with another plastic washer/seal that
fits
under the sink with a large nut to tighten the plug to sink joint. My
problem is I cannot tighten the nut enough to prevent water running down
the
thread of the waste fitting below the sink. I'm guessing that the water is
finding a route either between the plug and sink on the top side, or
possibly through the lower washer ? Is there a better way of sealing this
?

Thanks
Tony

click/clack ..I presume you mean a popup waste .
I have one of those and had no problem with any leakage but I think I
dumped the upper washer and used Plumbers Mait to seat it .. *As for
the large nut underneath I have just had a quick look using a mirror
and there is a washer underneath but I have a feeling it is rubber not
plastic .I think I might have smeared it with LSX sealant and
certainly I have had absolutely no problem with it since it was
fitted. Are both the washers you got with the waste plastic ?...is one
not rubber .

The lower one is rubber.
So the general consensus seems to be to use fernox lsx sealant/plumbers mait

... or silicone

and possibly not use the upper plastic washer either ?

what goes on on the upper side makes no difference re leaks. Plastic
washers just spread the load.

NT

The washer between the sink and the plug stops the water draining when
the plug is down - leave it out and the sink won't hold water,
although it won't cause a leak.

I prefer using these http://www.toolstation.com/shop/Plum.../sd2703/p37534
on the underside rather than using sealant.

A