Advice re: installing utility sink in basement

Pickngrin · 12-13-2009, 07:11 PM

I'm interested in installing a utility sink in my basement but have no idea about the requirements for the drain. Here is a photo of the drain pipe. I'm looking to do this cheaply. I called the plumber we use, and he said that he would charge ~ $900. The sink isn't a necessity, and I don't want to put that kind of money into it. I'm wondering if this is a reasonably DIY project.

Am I able to drain the sink into this main drain pipe?

Thanks

Ishmael · 12-13-2009, 07:55 PM

The main difficulty I see is that the ABS drain pipe (black plastic) looks too high to pick up a utility sink drain. The only place you could really cut a fitting in is in the copper stack between the "Y" that picks up the ABS pipe and just above where it transitions into cast iron right at the slab. And of course that's 4" copper...have you checked the price of a 4" x 1 1/2" DWV Tee Wye lately? (ouch!). That's not a lot to work with, and it can be a real can of worms. Then you also still have to vent it somewhere.

Pickngrin · 12-20-2009, 03:15 PM

Quote:

Originally Posted by Ishmael

The main difficulty I see is that the ABS drain pipe (black plastic) looks too high to pick up a utility sink drain. The only place you could really cut a fitting in is in the copper stack between the "Y" that picks up the ABS pipe and just above where it transitions into cast iron right at the slab. And of course that's 4" copper...have you checked the price of a 4" x 1 1/2" DWV Tee Wye lately? (ouch!). That's not a lot to work with, and it can be a real can of worms. Then you also still have to vent it somewhere.

Thanks, Ishmael. I have no idea what a 4" copper wye goes for, but from what you're saying, that sounds like the least of the problem here?
I don't know anything about venting plumbing. Does that mean it has to be vented to an outside wall?
Thanks again.