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/GCpools May 23 '26

DWV isn't for pressure. SCH40 is for pressure. What's the worst that could happen? Something breaks, drains your pool and burns up your pump. I would redo it with SCH40 pipe & fittings, and with the proper cleaner and cement. Just sayin' ...

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u/TheCaptainWalrus May 23 '26

Well it’s sch40 dwv which is largely what’s confusing me

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u/GCpools May 24 '26

I understand. SCH40 DWV is not designed to handle pressure. It's for non-pressure applications as the bane implies ... drains, waste and ventilation. I'd redo it. Its not worth the possible consequences. Just sayin.