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Plastic pipe fittings
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Treacodactyl
Downsizer Moderator


Joined: 28 Oct 2004
Posts: 25755
Location: Jumping on the bandwagon of opportunism
PostPosted: Wed Mar 04, 15 7:07 pm    Post subject: Reply with quote
    

Thanks for the replies. I'd certainly use the correct tools and follow the instructions.

I don't plan on using them on mains water pressure pipes, but might have a pump in the system.

I assume I could still use copper on the radiator/boiler system and the inhibitor should prevent acid damage?

dpack



Joined: 02 Jul 2005
Posts: 42272
Location: yes
PostPosted: Wed Mar 04, 15 8:33 pm    Post subject: Reply with quote
    

tis always a good idea to use the anti oxidant /anti acid /anti lime additives as appropriate in ch systems and copper is fine for most water types and purposes

ps fernox is a decent make of additives but iirc screwfix "own brand" stuff is ok as well

Nick



Joined: 02 Nov 2004
Posts: 34535
Location: Hereford
PostPosted: Wed Mar 04, 15 8:42 pm    Post subject: Reply with quote
    

B&Q own brand work fine on all our pumps. Put in extra flow valves because the pumps die often enough for it to be a pain otherwise.

Last edited by Nick on Wed Mar 04, 15 8:56 pm; edited 1 time in total

earthyvirgo



Joined: 24 Aug 2007
Posts: 7972
Location: creating prints in the loft, Gerlan
PostPosted: Wed Mar 04, 15 8:44 pm    Post subject: Reply with quote
    

vegplot wrote:
The push type fittings are good but you do need to make very clean scratch free connections to ensure their long term integrity. If you do use them it's advisable to be able to have good easy access wherever the joins are just in case of failure.

I wouldn't use plastic inside a house if the join is difficult to get at. A good copper fitting will give much longer problem free service than a plastic one assuming you don't have problems like you suggest e.g. acidic water.


What did Mark the Plumber say about the problem in Water Street?
I thought he'd given plastic fittings the no-no.
...or was that a particular type.

EV

Gervase



Joined: 17 Nov 2004
Posts: 8655

PostPosted: Wed Mar 04, 15 10:47 pm    Post subject: Reply with quote
    

Thirded on the cutter, and don't be tempted to skimp on the end inserts if you're connecting the plastic pipe to a compression joint. I've used Speedfit and HEP2O and have to say the HEP is easier to work with and seems more consistently made.
If you're using them on a heating system, make sure you get the barrier pipes with a metal gas-proof layer.

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