Leak under kitchen sink

The leak slowly comes out from underneath where I’m pointing.

I’ve read that it’s probably a case of tightening it but when I tried to it doesn’t move, to either tighten or loosen. It has sealant around it at the top on the right hand side so I’m guessing that’s why. It doesn’t seem sturdy stuff so I thought it would still loosen and come off but it won’t budge.

Can this be fixed with some more sealant? If I try to apply it underneath where the waters dropping from. I’ve looked at that many I’m not sure which to get. Tetrion Make Good Fix A Leak? Fernox LS.X?

 

You sure it is there and not the 45degree pipe above and right. Dry tissue paper dabed around best for finding leaks.

 

There will be a rubber/plastic cone shaped seal under the nut, that should be enough to seal it, but....

Get a pair of pipe grips or stillsons on the nut, to loosen it off, give it all a good clean and smear some Plumbers Mait around the seal contact faces and along the thread - that should fix it. Loosen is turn the spanner right towards left.

 

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