Utility Sink Draining into Washer P-Trap/Drain

[Zennifer]

This is the "wet wall" in our laundry room. It's 5' wide, and we'd like to add a utility sink on the right side. I've seen on here that we can attach the laundry sink drain right to the washer drain, in red (extending if needed to get the 30" minimum distance between the top of the washer drain stack and the top of the pipe after the ptrap.)
We also need to do the supply lines to the sink, which are on the left side. Any issues you see in getting them over to the right side? (There's some wonky electrical stuff we will be taking care of, and all the stuff around the base of the cleanout/drain is laundry detergent we haven't cleaned up yet.)
Finally, once we are done, we are going to drywall- my dad suggested we move the plastic to the other side of the copper, make sure it is all sealed against the fiberglass, and then add an air return vent at the top and bottom of that stud cavity. Thoughts on if that will keep the lines from freezing?
Thanks!

 

[Jeff H Young]

what 30 inch minimum? you mean the maximum distance from sink tailpiece to the stanpipe? something very differant

 

[Sponsor]

 

[Zennifer]

The one shown in this picture:

Another laundry sink question

Hi All, I'm trying to hook up a laundry sing in my garage next to the existing washer drain. I was hoping to use the configuration called out in 802.4.3.1, but in my application the P-trap is on the wrong side of the vent. Any ideas how I might solve this? Thanks much!

terrylove.com

 

[Jeff H Young]

ok so read that carefully and make sure your stanpipe is 30 inch minimum .

 

[Zennifer]

I can extend the washer drain pipe up, correct? (It does need to go higher- we are moving the drywall bracing studs up (none of the 2x4 are structural- just a fake wall.)

 

[Jeff H Young]

when you cut the standpipe and glue tee on youll be able to seee that minimum amount you need. my code has a max of 30 inches yours is minimum of 30 not all codes make much sence to me