Send us a textIn this episode of Mastering Wisconsin Plumbing, Ryan dives deep into two of the most versatile—but often misunderstood—venting systems in the Wisconsin Plumbing Code: circuit venting and vertical wet venting.You’ll learn:Why circuit venting only works with all wall outlet or all floor outlet fixturesWhen a relief vent is required (hint: 4 or more fixtures)How to size vent piping without violating codeWhat OTWV stands for (and why it’s worth knowing)How vertical wet venting works with pairs like laundry tubs and ACWsA real-world trick to reduce pipe sizing just by flipping your fixture layoutPlus, Ryan teases next week’s topic—water pipe sizing theory—which will unpack the pressure, friction, and fixture unit logic behind smart, efficient plumbing systems.Whether you're in the field or studying for your Master’s license, this episode gives you practical tools to apply SPS 382.31 venting provisions with confidence.References / Resources Mentioned:Wisconsin Administrative Code SPS 382.31 – Venting systems design and sizingSPS 382.40 – Fixture unit table for water sizing (previewed for next episode)SPS 381.01(288) – Definition of “wet vent”Wisconsin DSPS Plumbing Code Home Page – https://dsps.wi.gov/Pages/Programs/Plumbing/Default.aspxSupport the show

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