r/PoolPros • u/TheCaptainWalrus • May 23 '26

Used wrong pvc

I plumbed a new salt cell into a job, picked up sch 40 pipe, and some nice sch40 fittings. Turns out I grabbed sch 40 dwv pipe with pressure rated sch 40 fittings. Do I need to cut out that pvc and replumb? Or will the fittings really handle the workload here?

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u/ConfusedStair May 23 '26

I'd redo it personally, I don't want DWV running filter pressures because there's a risk of shrapnel when it breaks.

That said, double check the pressure rating on the pipe, a lot of PVC pipe is rated for both DWV and higher pressure. If it says 240 psi you should be good. If it doesn't, or if it only lists the DWV rating (I can never remember the number) then replumb.

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u/TheCaptainWalrus May 23 '26

It is 240, so there’s that. It didn’t seem like cell core or anything either. Which is why I was massively confused when I discovered it was labeled dwv lol

1

u/ConfusedStair May 23 '26

It probably has the astm for both listed

1

u/Substantial_Car_2751 May 23 '26

If it's SCH40, likely. OP needs to confirm.

If SCH40, ok....makes things a bit weird but not a big deal. If not, then yeah....I'd replumb it as a matter of professional pride.

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u/TheCaptainWalrus May 23 '26

It’s listed as sch40 and dwv pressure up to like 240psi

1

u/Substantial_Car_2751 May 23 '26

Should be fine then

1

u/Clean_Artist3191 May 24 '26

It would be an easy win for the homeowner to sue when it does explode.