harborremodel
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- Oct 9, 2017
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I'm replacing a sink and currently there are two 1.5" ABS drain lines under there (pic attached). The current dishwasher waste line goes to an airgap and then down drain line #1 (black trap in pic) while the sink goes down drain line #2 (white ABS trap in pic). The new sink has a single drain in the center rear of the basin that is much closer to drain line #1.
I'm wondering if i could just get a branched tailpiece for the new sink and have everything go down a single drain line. It'd just cap drain line #2 and it'd allow me to clean up the mess of plumbing under the sink and free up some room. Is there a reason why the original builder of the home would have not used this setup in the first place? I'm in Washington state so perhaps there is some local code that requires an air gap and separate drain?
I'm wondering if i could just get a branched tailpiece for the new sink and have everything go down a single drain line. It'd just cap drain line #2 and it'd allow me to clean up the mess of plumbing under the sink and free up some room. Is there a reason why the original builder of the home would have not used this setup in the first place? I'm in Washington state so perhaps there is some local code that requires an air gap and separate drain?