Rather Simple Vanity Drain Question

[Robert McKenna]

I plumbed a new basement bath for double sink vanity and now my wife wants a single large sink. Walls are still open, but subfloor drains are set and covered.

My question: Should I re-route 1 of the 2 staggered vertical drain lines in the wall so it emerges directly behind the single sink or just run it at a 45 degree angle from wall to the sink? Besides cabinet space or aesthetics, is there any reason to re-route?

Planning to use 2nd drain (unused) as an undersink cleanout.

Thanks.

[srdenny]

How far horizontally is your sink from your existing waste line?

[master plumber mark]

just cap one off and use a 45 to do the job.

It might be called a "dirty arm" by some

if it stretches a few feet over from the vent ....


but it will work fine