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Assembling the Drain System — Install the Shower Drain Line

Beginner

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Shower Rough-In Plumbing: A Step-by-Step DIY Guide · Step 2 of 4

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Assemble and connect the new PVC pipes, ensuring the correct orientation and slope for proper drainage. Ensure the proper connection is established from the drains to the sanitary tee and then into the drainpipe.

Goal: Connect the new PVC pipes to form a drain system.

  • Make sure pipes are properly aligned to prevent leaks.
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FAQs

How difficult is this shower rough-in project for a beginner, and what's a realistic time estimate?

While labeled "beginner," this project requires meticulous attention to detail for measurements and connections. A novice can accomplish it, but allocate at least a full weekend, or even longer, to work carefully, learn the process, and handle any unforeseen challenges without rushing.

The tool list includes a "Zest Candle." Is that correct, and are the PEX-specific tools like the crimp tool absolutely necessary?

The "Zest Candle" is an error and is not needed for plumbing. However, specialized PEX tools such as the PEX cutter and a crimp tool are absolutely essential for creating secure, leak-proof connections. You can often rent these specific PEX tools from home improvement stores if you prefer not to purchase them.

What are the most common causes of leaks in PEX supply lines, and how can I ensure my connections are watertight?

Leaks typically stem from improper crimping or damaged tubing. Always make clean, perpendicular cuts with your PEX cutter, ensure fittings are fully seated, and use your crimp tool correctly. Crucially, check every crimped connection with a go/no-go gauge for proper tightness.

How should I thoroughly test the PEX supply lines for leaks before closing up the walls?

After capping all open PEX ends, slowly introduce water pressure to the system. Inspect every connection point visually for drips, listen for any hissing, and feel for moisture. Keep the system pressurized for several hours and re-check periodically to catch any slow leaks before proceeding.

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drains here to the drains below I provided multiple options from replacing the entire kitchen sink drain to doing only the repairs beneath the sink and at this time the customer decided to only have the drains repaired beneath the sink I tried to do my best with what I was working with here I'm not a huge fan of these air admittance valves but in a situation like this where there isn't an existing vent and the customer is not wanting to replace all of the drains this was the best option that's going to

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