jaydub2010
New Member
was looking to expand my bathroom and get a bigger vanity with a double sink. Going to be taking down the wall and expose the plumbing and venting. When plumbing for a double sink do I need to have more than just the 1-1/2" ABS? for the drains? I imaging that I can have 1-1/2" from sink to the wall, but then does it need to be 2" from there to main stack?