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Post by dickpuller on Dec 7, 2018 19:38:07 GMT
I’ve been using it for years, well, since the 80’s & Bartol Acorn - great stuff!!
OK there was no barrier in the pipe wall & it fucked your central heating system, but hey don’t judge me on it😀😀😀
Anyway, here’s my take on some do’s & don’ts:
Don’t fit a system where the grab ring is not first in the fitting, with the grab ring first, it may leak, but it will not blow off!!
Do rotate a leaking fitting, but always ensure it’s right home. An O ring can have some shit under it & a wee twist can move it.
Do replace the O ring if in doubt.
Don’t use a hacksaw to cut the pipe, always use cutters.
Do store loose fittings in a bucket of water, storing them dry will just get shit on the O ring. Leave them in their bag if you can.
Don’t put too much strain on fittings, an elbow can split if you join two pipes at a ‘30degree’ angle, common sense really.
Do clip the pipe, it’ll sag like fuck & put unnecessary strain on fittings.
Don’t connect directly to boilers, use copper for at least the first meter.
Don’t use PF pipe or fittings on a secondary return system, it puts a constant temperature on the pipe.
Do pressure test any system before it’s covered over, be it First Fix in a new build or a Kitchen alteration.
Do be mindful of Expansion & contraction, it’ll creak & tick going through joists for example: bore a bigger hole & rap it in DPC.
Thats just one or two, if anyone can think of some more, please add them to the thread👍👍👍
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Post by Deleted on Dec 7, 2018 19:43:59 GMT
If you're using JG pipe/fittings remember you can only use compression fittings on the pipe when you use the pipe inserts without the rubber seals.
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Post by Deleted on Dec 7, 2018 21:38:52 GMT
I haven't used it yet. Figured I'd be better off learning more about copper than spreading my learning too thinly. But a question:
With copper you're not encouraged to use compression under floors etc. I've seen first hand why not - just a fairly gently pull/push of any attched pipe could cause a leak. So what about push-fit? How robust is it to mechanical movement? Surely is a lot worse than soldered but what about in comparison to compression?
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Post by tomplum on Dec 7, 2018 21:57:35 GMT
because of its design, it can move about a fair bit, I've been on jobs were I've cut a pipe in the floorboard space and its turned, that worrys me, because if its a compression it might leak now, if its a push fit, it will be ok, but I won't be able to sleep unless I find out. So i have to take more floor up to find out why it turned,  |
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aj
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Post by aj on Dec 7, 2018 22:45:32 GMT
is it true about not using compression under floors?
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Post by Deleted on Dec 7, 2018 22:58:48 GMT
because of its design, it can move about a fair bit, I've been on jobs were I've cut a pipe in the floorboard space and its turned, that worrys me, because if its a compression it might leak now, if its a push fit, it will be ok, but I won't be able to sleep unless I find out. So i have to take more floor up to find out why it turned, I have had that with compression fittings Tom, your cutting a section of tightening a fitting up and you're loosening one further along the pipe. You can guarantee it will be in a void hidden and a twat to get to. I remember once I cut just above the main stop and fitted two compression elbows to take a feed off outside and a return back for a water softener, the main stopcock riser was in the corner of their front room (boxed in). I remember I couldn't solder elbows because the stopcock let by a little, I remember tightening the elbow and the whole stopcock turned and water started pissing through where it came up through the floorboards  I managed to get a floorboard up and it was a compression coupler come loose. Things can turn to shit very quickly and you have to be on your A game always I was also working on a section of pipe work on another job and an old isolation blow off. laughing-dog-smiley-emoticon |
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Post by Deleted on Dec 7, 2018 23:00:14 GMT
is it true about not using compression under floors? It is not recommended in areas that are hidden and hard to access. |
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aj
head of marketing and bargains
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Post by aj on Dec 7, 2018 23:37:45 GMT
news to me. nobody told me. i have used compression joints under floorboards and joists. They should come with instructions for us diyers
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Post by Deleted on Dec 7, 2018 23:47:21 GMT
news to me. nobody told me. i have used compression joints under floorboards and joists. They should come with instructions for us diyers I wouldn't worry because so have I !  |
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Post by Deleted on Dec 8, 2018 0:10:02 GMT
The "plumbers" that installed our main bathroom left from memory at least three compresions under the tiled floor. Two of them were the flow/return from a new rad. I suppose they put it there for their own convenience so they didn't need to worry about draining down all the time. If they had just spoken to us it would have been no problem to have been without heating/water at certain points.
The c*nts also left another elbow I think it was at the bottom of the stud wall. When I went to fix their leaks around the mixer, I must have agitated that elbow and it started dripping. Either that or that fker was dripping from the start. I had to redo all the concealed pipework and then re-tile.
Looking back, its almost funny what happened. How many leaks can one bathroom produce? We'd just had them take pics of it all looking nice (I think they were basically tilers/plasterers pretending they could do plumbing too) then downstairs for a 4 figure payment in cash. Finally they left all smiles and I'm telling you within one hour the kitchen ceiling below starting dripping fking everywhere !
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Post by tomplum on Dec 8, 2018 9:23:47 GMT
news to me. nobody told me. i have used compression joints under floorboards and joists. They should come with instructions for us diyers You are right mate, they should have instructions on the pack, Its a gassafe rule that, compression fittings should not be used on pipework that is not accessible, |
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Post by woodbine66 on Dec 8, 2018 10:26:58 GMT
The "plumbers" that installed our main bathroom left from memory at least three compresions under the tiled floor. Two of them were the flow/return from a new rad. I suppose they put it there for their own convenience so they didn't need to worry about draining down all the time. If they had just spoken to us it would have been no problem to have been without heating/water at certain points. The c*nts also left another elbow I think it was at the bottom of the stud wall. When I went to fix their leaks around the mixer, I must have agitated that elbow and it started dripping. Either that or that fker was dripping from the start. I had to redo all the concealed pipework and then re-tile. Looking back, its almost funny what happened. How many leaks can one bathroom produce? We'd just had them take pics of it all looking nice (I think they were basically tilers/plasterers pretending they could do plumbing too) then downstairs for a 4 figure payment in cash. Finally they left all smiles and I'm telling you within one hour the kitchen ceiling below starting dripping fking everywhere ! Plumbers and 'bathroom fitters'. Trouble is, the bathroom fitters don't know their limitations. |
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Post by dickpuller on Dec 9, 2018 10:57:26 GMT
If you're using JG pipe/fittings remember you can only use compression fittings on the pipe when you use the pipe inserts without the rubber seals. Well, you can circumcise the supersleeve ones PB & use them. Cut the end O ring off with your cutters & you don’t even need to have a Bar Mitzvah👍👍 |
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Post by dickpuller on Dec 9, 2018 10:59:07 GMT
Eh hello!!! It’s a Push Shit thread!!!🤨🤨
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Post by crowsfoot on Dec 9, 2018 16:43:22 GMT
One or two push fits are OK, however, too many and the pipework will slop about too much for my liking (compression as well). It is possible too unscrew a push fit without realising it - so always do a final check to make sure that they're fully tightened up (when you use that screw up type).# A small squirt of furniture polish helps them go on easier is my top tip! # I once kept getting called to a mystery leak though a ceiling that only leaked during the night. Eventually it was decided to take up a floor that had be tiled nicely with Marley tiles; underneath I found two tees that had been fully inserted but not tightened up fully and it was these that were leaking, but only when the mains pressure rose enough during the night to make them weep. PS It had me weeping as well on that ruddy job  ! |
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I managed to get a floorboard up and it was a compression coupler come loose. Things can turn to shit very quickly and you have to be on your A game always
!