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pex with Poly alloy fittings

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  • Mar 5th, 2022 11:32 am
[OP]
Newbie
Jan 1, 2013
3 posts
1 upvote

pex with Poly alloy fittings

Hello

i just did a first walk through of my new build and i noticed Poly alloy fittings was used on the plumbing.
i don't know if my builder are cutting corner using plastic instead of brass.
Heard plastic fitting gets brittle overtime and they don't last as long as brass.
4 replies
Deal Addict
Nov 6, 2014
1261 posts
2283 upvotes
0 downvotes (Maple,O…
Depends which pex. Is it pex A or B? I have Pex A (uponor) which needs to be expanded onto fittings and all my fittings are plastic. 25 years and not one issue. If you have a crimp ring (pex B) on a plastic fitting, I'd be worried.
Deal Addict
Nov 16, 2011
1520 posts
1237 upvotes
Hamilton
is this a custom build or just a mass produced survey build ??
Deal Addict
User avatar
Feb 25, 2004
1627 posts
1160 upvotes
Longueuil
Personally I prefer brass because it is stronger and the flow is better (my water quality is good so corrosion is not an issue and the builder used brass anyway so I continued to use it in renovations) but both have advantages and can do the job. Obviously brass is more expensive so I can easily see the builder using the cheaper alternative (no surprise there).
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