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 ?
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 .
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