https://www.hunker.com/13725518/bathtub-plumbing-rough-ins-a-homeowners-guide/
Bathtub Plumbing Rough-Ins: A Homeowner's Guide
Oct 12, 2021 - Rough-in bathtub plumbing involves installing the drainage assembly on the tub, connecting it to a P-trap and vent and installing the water lines and faucet.
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