Green Building Forum - Push fit or press fit? Mon, 05 Oct 2026 23:27:37 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307049#Comment_307049 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307049#Comment_307049 Fri, 18 Oct 2024 21:54:45 +0100 Victorianeco
I did the last house in hep20 without issue but thinking press fit seems popular lately.

Also, are people still preferring to run 15 to showers, 22 to baths, 10 to sinks all from manifolds?]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307050#Comment_307050 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307050#Comment_307050 Sat, 19 Oct 2024 10:06:11 +0100 djh
edit to add: my pipes are plastic (JG Speedfit) flow rates are fine. Run to the bath is about 10 m.]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307052#Comment_307052 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307052#Comment_307052 Sun, 20 Oct 2024 02:53:54 +0100 Artiglio Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307054#Comment_307054 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307054#Comment_307054 Sun, 20 Oct 2024 17:39:38 +0100 WillInAberdeen
15mm copper pipe has a bore of 13.6mm, can work with pushfit/solder/press/compression but is awkward to retrofit

16mm mlcp pipe for press fittings has a bore of 12mm.

The extra mms make a disproportionately big difference to flow resistance which depends on diameter^5. So it may be that you could get away with (say) 15mm copper, but have to go up a size, to 20 mm mlcp or 22mm p-b.



I used to like push fit, but my in-laws just had to rip out the floors of their nearly-new home to trace where a mouse had chewed through a plastic fitting and drained down their whole central heating. In future I think I will go for plastic pipe with metal fittings, either pushfit or press fit.]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307056#Comment_307056 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307056#Comment_307056 Sun, 20 Oct 2024 23:11:38 +0100 Jeff B Posted By: WillInAberdeen

I used to like push fit, but my in-laws just had to rip out the floors of their nearly-new home to trace where a mouse had chewed through a plastic fitting and drained down their whole central heating. In future I think I will go for plastic pipe with metal fittings, either pushfit or press fit.

Why I still only use copper pipe/fittings everywhere!]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307058#Comment_307058 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307058#Comment_307058 Mon, 21 Oct 2024 07:45:26 +0100 djh Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307059#Comment_307059 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307059#Comment_307059 Mon, 21 Oct 2024 08:53:54 +0100 WillInAberdeen
If they're not already in your home, they will be soon, it might just be that you haven't noticed them yet!

In my in laws' case, they still have no idea how it got under their floor, they suspect a blocked-off duct that was there for a gas supply pipe that wasn't subsequently installed, but really no way to tell for sure or prevent it happening again. The house is pretty air-tight but that certainly doesn't make it mouse -tight.]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307064#Comment_307064 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307064#Comment_307064 Mon, 21 Oct 2024 14:20:33 +0100 Jeff B
https://www.terminix.com/rodents/mice/house/]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307067#Comment_307067 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307067#Comment_307067 Mon, 21 Oct 2024 19:34:26 +0100 djh
We saw a rat in the garden, which my wife liked because it was dragging an adder, and a couple of days ago I saw the rat with its throat ripped out by something else. But I expect there are more out there. And lots of squirrels, which we had in the loft of our old house. Next door built some bird boxes, which now provide des res for squirrels. They like our walnuts and hazelnuts and this year they've discovered the apples as well.]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307432#Comment_307432 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307432#Comment_307432 Fri, 06 Dec 2024 18:31:23 +0000 Victorianeco
I'm tempted to give this option a go but will need to buy a press tool of some sort. She's anyone have any recommendations on a tool?

It would likely only be for my own install but may come in handy further down the line.

?]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307435#Comment_307435 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307435#Comment_307435 Fri, 06 Dec 2024 20:23:18 +0000 Peter_in_Hungary Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307437#Comment_307437 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307437#Comment_307437 Fri, 06 Dec 2024 22:47:43 +0000 Victorianeco
Any brands of fittings to look at / compare prices?]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307438#Comment_307438 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307438#Comment_307438 Sat, 07 Dec 2024 09:08:03 +0000 revor Posted By: VictorianecoI'm tempted to give this option a go but will need to buy a press tool of some sort. She's anyone have any recommendations on a tool?

There is a hand jointing tool here don't know if it would suit you but worth a look.

https://www.bes.co.uk/alpha-press-jt-1632-manual-press-fit-kit-25468/?nosto=nosto-page-category1

Posted By: VictorianecoMy ASHP supplier has recommended plumbing everything in 16mm PEX-al-PEX


If I was doing my project now and not 10/12 years go I would go down this route]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307440#Comment_307440 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307440#Comment_307440 Sat, 07 Dec 2024 11:28:41 +0000 Victorianeco
I'll price them up both ways]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307441#Comment_307441 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307441#Comment_307441 Sat, 07 Dec 2024 12:46:46 +0000 revor
https://www.youtube.com/watch?v=TC7bb_bA-OM]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307442#Comment_307442 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307442#Comment_307442 Sat, 07 Dec 2024 13:52:47 +0000 Peter_in_Hungary Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307443#Comment_307443 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307443#Comment_307443 Sat, 07 Dec 2024 15:23:30 +0000 Victorianeco
Any preference on brands?]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307454#Comment_307454 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307454#Comment_307454 Sun, 08 Dec 2024 08:47:23 +0000 revor
https://www.fraenkische.com/en/product/alpex-plus-steckfitting]]> Push fit or press fit? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307552#Comment_307552 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=18219&Focus=307552#Comment_307552 Mon, 23 Dec 2024 16:22:06 +0000 minisaurus https://www.dinvvsbutik.se/sv/artiklar/ror-rordelar/rordelar-kopplingar/presskopplingar-delar/index.html

And using one of these to connect everything: https://vepax.se/produkt/ridgid-pressverktyg-rp-241-sats-med-v15-22-28/?msclkid=521a591a7d711d87d9393e73f05a5a69
:smile:]]>