Under sink plumbing

Question

Replaced u bend under double sink in kitchen, some leaking around joints.

All seals are brand new, all connections are threaded correctly but there’s still slight leakage around the connections, not sure why

Sean · Answer

Good morning.
You may need to apply a small amount of ptfe tape on top of the rubber seals to thicken them up abit.
Make sure all your joints are threaded correctly which you have already stated.
Hand tighten all the joints and pinch them up slightly with a pair of grips afterwards.
Hope this helps.

Callum · Answer

Make sure the rubber washers are all sitting correctly inside the seals. There’s no way any tape or other compound should be needed on brand new fittings

Kai · Answer

You may need to add some ptfe tape around the new seals as sometimes they can come slightly smaller than the original. They should be hand tight and only a little tighten with grips if necessary. Hope this helps

Shero · Answer

Try to open it all and clean them and use pdf tape around each connection and tight them all.……..see what will gaping then……….if still leaking some where, then use silicone around the connection.

Under sink plumbing

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