I needed a plug for the kitchen sink and bought a one and 3 quarter inch plug which fits but it's not a tight fit?
I bought it on ebay is it just a duff reject plug or are there sinks that are slightly larger surely they are all the same size? # The water drains away very very slowly so it is usable but I am puzzled by this?
The underside of my kitchen sink plug says "McAlpine 1 3/4 inch and a couple of other measurements in mm.
It is metal with a sort of O ring inset into the tapered plug bit to make the seal.
perhaps the waste hole is metric (45mm)?
Several years ago I bought a replacement chrome-plated plug for the bath. Unless placed very carefully, it doesn't fit. Even then, it's raised a few mm above the hole. When I asked my plumber about this, he said that manufacturers all had their own sizes which could be a fraction of a mm different in diameter, so making a perfect fit more luck than judgement.
That's only kind that will seal my kitchen sink drain outlet.
I've had the same experience as the OP with a variety of rubber/plastic plugs. I think it may not be the diameter but the depth of the mating half. The metal plugs with an O ring are very shallow whilst the deeper rubber plugs are tapered and bottom out on the strainer before sealing the hole.
Jeff Layman wrote on 27/01/2022 :
I had that with the bath plug, I simply ground some height of the bottom of the plug to let it seat down deeper.
Well baths are not standard so why would sinks be any different? Brian
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