On 05/03/2021 14:58, JohnP wrote:

How are you supposed to tighten them into the recesessed body of the tap?
Is it enough to just hand tighten them as they rely on an "O" ring?

Hand tight is good enough to get a seal - a tiny bit more will also
prevent any danger of it unscrewing itself accidentally while installing
it.

--
Cheers,

John.

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