Help with leaking sink pipes?

[youngsyr]

Hi All,

Can anyone help with my leaking sink please?! The leak is at the back of one of the joins between the plastic pipes between the sink waste and the U-bend (see picture below with arrow pointing to leaking join).

As there are 3 rigid pipes connected to that part, I can't see how I can tighten it to seal the link?

It was originally installed years (possibly decades) ago.

Edited by youngsyr on Tuesday 26th July 15:38

[8-P]

Looks like only 3 things to disconnect to find out?

[sherman]

Plumbers mate will sort it out.