If a water service pipe is a three quarter inch PEX, is this a defect?

1

because i just read that the inside diameter will be different in PEX piping.

2

Used as water service, no.

But used as the TPR valve discharge pipe reduced in size, then yes.

4 Likes
3

Short answer? Nope!!!
Cheers

2 Likes
4

You need to be more specific with details…

Regarding standard Supply lines: Overview: Types of PEX and Ways to Connect – Aquor Water Systems.

Other: Pex Tubing - Northern Stoker

Specialty: Large Diameter Cross-Linked PE Pipes #1998

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Thank you!