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Test the Repaired System — Rough-in Inspection

Intermediate

Part of project

How to Rough-In Plumbing for a Basement Bathroom · Step 5 of 6

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In this video

With the AAV installed, the user tests the plumbing system. He runs the water in the sink and flushes the adjacent toilet. The sink now drains quickly and efficiently, creating a strong whirlpool, which indicates that the drain is now properly vented. He repeats the test to confirm the fix is successful and expresses his satisfaction.

Goal: Plumbing Pipes Repair

  • A whirlpool or vortex effect in the draining water is a good indicator of proper drain function and ventilation.
5.9K views503 minutes
Benjamin Sahlstrom

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FAQs

Are there any specialized tools required for cutting or joining PVC for the DWV system that I might not already own?

Yes, you'll definitely need a dedicated PVC pipe cutter, such as the Crescent 2-1/8 in. Ratcheting PVC Pipe Cutter, for clean, precise cuts. Additionally, a reamer and deburring tool, like the Husky 1-5/8 in. Inner/Outer Reamer, is crucial for smoothing pipe edges to ensure proper, leak-free solvent welds. A sturdy tape measure and marker for accurate layout are also indispensable.

What critical safety precautions should I take when breaking up concrete and working in a dusty basement environment?

When breaking concrete, always wear heavy-duty safety glasses, hearing protection, gloves, and steel-toed boots. For the dusty environment, a high-quality dust mask or respirator is essential to protect your lungs from concrete dust. Ensure good ventilation by opening windows or using fans, and be aware of any existing buried utilities before you start digging.

Given the 'intermediate' difficulty, how much time should I realistically allocate for roughing-in basement plumbing, and what are the primary cost drivers?

Realistically, this intermediate project can take a dedicated DIYer anywhere from 3 to 7 full days, depending on prior experience and the complexity of your bathroom layout. The primary cost drivers will be the PVC DWV pipes and fittings, PEX water supply lines, and the concrete repair materials like gravel and concrete mix. Don't forget to factor in permit fees and potential tool rentals.

What are the most common mistakes DIYers make with the DWV system (drain, waste, vent) layout, especially regarding proper slope and venting, that could lead to inspection failure?

A frequent mistake is failing to maintain the correct pipe slope, typically 1/4 inch per foot, for proper drainage, which can lead to clogs. Another common error is inadequate or improperly installed venting, which can cause drain traps to siphon and emit sewer gas. Always consult your local plumbing codes carefully and use a level constantly to ensure correct slope and alignment.

Transcript
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see if it's any better oh it seems to be working with the toilet floor I think it is try again yeah apparently that works come here for a minute let me shut this all I want to put this up up out there not I want to see if we get here to suction if you flush the toilet good man of the toilet's too loud I can't hear nothing what it seems to be flushing drain improperly I'm definitely happy with that 30 bucks for that vent 30 bucks just saved me a whole lot of trouble so I had people ask me you know when I did the video

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