Compression Fittings - compound or not?

[anonymous-user]

Hi Chaps,

I'll be doing some plumbing later this weekend (my least favourite bit of DIY!). which will call for some 22mm compression fittings onto copper pipe.

There seems to be some debate whether additional jointing compound should be added 'just to make sure it doesn't leak'. The pipes to be joined will all be new and wire-wooled, and the fittings are also new.

I don't have any jointing compound, so will a drive to the plumbers' merchant be required?

[anonymous-user]

Well that's 1-1 .... going into extra time

[anonymous-user]

thebraketester said:

Is soldering them out of the question?

I'm afraid so - the fittings are on some valves

For threaded pipe fittings I've used Loctite 577 with 100% success, but I've never really been confident with compression fittings. In the past, I haven't used jointing compound. Seems like the subject is divided into 'purist' and 'practical' camps - and I have sympathy with both!

[anonymous-user]

Ok, I've been out to get some 'lube'

I'll update on the leak status soon!

[anonymous-user]

Thanks Guys - we have a leak-free zone

The CH system now works a bit better not having an automatic bypass valve letting through when it shouldn't