Read lots of info on the forum. Great. I've just installed a new above cupboard basin using flexibile and compression joints. All well - so far. Just one concern I've only managed to turn the nut on the compression joint one quarter of a turn after being hand tight. Is this enough? Bit of resistence in terms of that squealing noise if you see what I mean, so I stopped shortly after that point. My previous experience of plumbing was a disaster (the days of going to Great Miles DIY and over tightening joints with little confidence in them staying on if not water tight! Swore that I would never again touch plumbing.

Ho Ozni,

What type of compression fitting is it? Also, is it on a gravity fed distribution pipe or mains? Whilst it is important not to over tighten compression fittings, if not enough then you could get an unpleasant surprise when turning the supply back on. If you 'nipped it up' then gave another half turn it should be okay, but get someone to check as you turn on the supply so you can always switch back off. There may just be a slight seepage requiring a further nip with a spanner...

BTW you said you only managed to turn "the nut" half a turn what's on the other end of the fitting? If it's a tap-connector it's not compression, but don't forget the fibre/rubber washer or it will leak...

Good luck!

Tec

What you've done is near enough text book.

Are there any drips when you turn the water on? If not don't worry.

It is always best to slightly under tighten, get a slight drip, then turn another 1/2 turn rather than over tighten in the first place.

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Dave

www.drlgas.co.uk

Cheap fittings.

What you need to do is lubricate the thread with a jointing compound, at the same time put some around the olive.

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Thanks for the replies. Appreciated. Its a mains sytem with no headert tank. The compression fitting is a 90 degree elbow (Conetite brand made by Ryemetal). Its attached to a 15mm copper pipe via the compression fitting and flexabile tap connector on the other side of the elbow using the nut and washer on the braided hose. No leaks/seepage so far. From what you guys say would I now be better to leave the hand tight plus one quarter of a turn tightness that I've done with spanners?

In my opinion a 1/4 turn tightness is not good enough.

As I said cheap fittings needs the thread lubricated, or they don't tighten up properly.

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Thanks for that thescruff. Just been looking at the olives andthe ones I've got are very different from the ones I used before. They are cone shaped would that make a difference. Attached image. Cheers [/img]

Image upload didn't work last post. Here goes again.

None at all.

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