r/DIYUK • u/Calm-Explanation-127 • 1d ago

Plumbing Help identifying bathroom sink part

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Added some pictures of the old part that came off today. Any help would be appreciated!

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u/rovdog 1d ago

Measure the diameter of the head and buy a new slotted Basin Waste from Screwfix. They are cheap and easy to fit.

https://www.screwfix.com/p/flomasta-slotted-sprung-basin-waste-66mm/168jn?ref=SFAppShare

Do away with the foam washer that sits between the trap and the sink and use a good quality silicone. I’d also recommend to get a seal kit and do away with the original seals.

https://www.screwfix.com/p/thomas-dudley-ltd-basin-waste-seal-kit-3-piece-set/8795r?ref=SFAppShare

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u/Calm-Explanation-127 1d ago

Thanks so much! I'll have a look at this right now.

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u/Krasnystaw_ 1d ago

Diameter is the same. With the photo you gave, I would say you need a slotted one (basin with overflow). He is right with silicone (clear) instead of washer, but you could do it either way.

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u/rovdog 1d ago

Correct, most standard basins require a basin waste with a 1 1/4” BSP thread. However, Screwfix lists these based on the head diameter (typically between 60-66mm). Since each basin has a different recess to fit the head of waste, it’s best to choose a size that matches closely.