When using push-fit couplers in pipe, how necessary is it to use inserts to support the pipe where it fits in the coupler? I seem to recell forgetting to use them once or twice but have never noticed a leak develop. Does anyone here purposely avoid using inserts in the belief thay are unnecessary?
Thanks
Al
We were somewhere around Barstow, on the edge of the desert, when the drugs began to take hold. I remember "AL_z" saying something like:
I've always used them, simply because the makers say it is necessary and a flood is just so inconvenient. To deliberately not use them would be pretty daft.
Certainly essential for compression fittings on plastic - I had to fix a leak on a new run a friend installed, and it was on the one and only join where he'd forgotten to use an insert (and it was a low pressure supply).
And the one and only one that leaks will be the least accessible one.
Also known as "The law of sod".
Probably Dribble.
Owain
I've missed them out on *temporary* work, when I ran out. No leaks seal on speedfit at 3 bar (cold supply only).
As others have said, disasterous on compression fittings.
Low pressure is probably the worst, as it wont swell the pipe..
I've done the same - forgotton and observed no leaks. However, I have gone back and put the inserts in.
Do it - you know it makes sense...
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