EASY way to change from 1 to 2 sink vanity?

Old 03-31-17, 11:54 AM
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EASY way to change from 1 to 2 sink vanity?

Wanting to toss my old single-sink bathroom vanity top and replace with a nice used dual sink top. Here is pic of current plumbing (currently not completely hooked up).
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I am thinking to just buy splitters for drain as well as supply lines (see pics) Name:  1-4 Turn Dual Outlet.jpg
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Name:  Tee.jpg
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I would of course need to resize pvc as necessary. Youtube vids show people using blowtorches, welders, cutting holes all over tarnation, etc. But it seems pretty simple to me. Am I oversimplifying or missing something? Is it OK for them to share one P-Trap? One sink will be near plumbing fixtures below, other will be to the side. Thanks!!!!
Old 03-31-17, 02:02 PM
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Each sink should have it's own trap, but both traps empty into the same drain stub. It's not like a double kitchen sink that share one trap. I may be wrong. The experts will be here shortly.
Old 03-31-17, 02:28 PM
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Im not the expert, but imo the proper way to do it is to open the wall up behind the vanity (remove drywall) and put in a double sanitary tee inside the wall. (Its like a 4 way fitting) Drill through studs as needed and stub out directly behind your proposed sink locations.

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