So, it appears that this pipe is PVC, Sched 80… or is it? Can this be Sched 80 CPVC? The markings - which I did my best to photograph - don’t tell me all that much, but I’m hoping that they tell you more. The second question is, if it’s PVC what do you say about it? For some reason, I can’t figure how to add photos, so here’s what I can read off the pipe. Sched 80 850 PSI @73 F CS 207-60 TYPE 1 ETHYL 1/2- IN I also photographed a marking which was on a different pipe reading ASTM-D1783. The pipes are grey in color.
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Obviously, there’s no picture.
What was the pipe installed in/on/for/etc?
It was potable water supply piping from the well pressure tank to various parts of the home.
Schedule 80 PVC is still PVC, just thicker and stronger, and not rated (in most jurisdictions) for potable water inside the home.
I found this on the manufacture’s website
PVC Materials:
The material used in the manufacture of the pipe shall be domestically produced rigid polyvinyl chloride (PVC) compound, Type I Grade I,
with a Cell Classification of 12454 as defined in ASTM D1784, trade name designation H707 PVC. This compound shall be gray in color as
specified, and shall be approved by NSF International for use with potable water (NSF Std 61).
If I’m reading the right place, the manufacturer says its ok for potable water.
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So, it sounds like you’re thinking this is PVC and not CPVC. The marking that I saw on the one pipe was ASTM 1783 not 1784. As for whether PVC/CPVC are safe for potable water my moderately informed opinion is that CPVC is and PVC isn’t. That’s why I’m trying to determine which of these it is. I want to provide a warning if it’s PVC, but unless I hear a persuasive argument, I plan to not mention it if its CPVC.
So it sounds like you, too, are thinking that this is PVC and not CPVC?
Actually to clarify this, my understanding is that -while both are safe for potable water - CPVC is allowed for potable water use within the home and PVC is not.
In most cases this is true. PVC can be used for water service to the home, but not for distribution inside the home.
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Since we are technically in the same market, the next time you see “rigid plastic” piping in an older home, take a close look at it. You may just find that it is PVC and not CPVC… EXCEPT… when it is being used in HOT water applications!
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Yep, that is the way it is done here.
GA follows IPC 2018.
Distribution - PVC not listed
Supply - PVC listed
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Then it would go in the report as a defect.
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And there you go!
Thanks! Done.
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That worked! Any pictures of a fitting?
I might be way off here but I get steel schedule 80 plumbing pipe with ETHYL coating.
I’m not at all familiar with that. Is it usable for residential indoor potable water?
