Expanding a bathroom vanity to accommodate a second sink requires careful structural and plumbing adjustments.
In short: Plumbing and heating expert Richard Trethewey demonstrates the process of installing a second sink into an existing bathroom vanity. This project involves modifying cabinet storage, cutting the countertop, and extending plumbing lines to support the new fixture.
To integrate a second sink, the vanity cabinet often requires physical modifications. In this project, a carpenter shortened existing drawers to create necessary clearance for the new drain and supply piping. The countertop was prepared using a paper template and a jigsaw to cut the opening for the basin.
The plumbing installation involves running new PVC drain lines and copper supply pipes. After mounting the faucet, the sink is set into the cutout and sealed with silicone tub-and-tile sealant. The process requires specific materials including lead-free solder, flux, and assorted pipe fittings.
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Sources
- Summary by Intellect · source: How to Add a Second Sink to a Bath Vanity | This Old House
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