Bathroom Rough-in

Adatwist · 09-09-2011, 05:35 PM

Hi,

I'm just getting ready to renovate my basement, starting with the bathroom first. I've attached three pictures, the first one showing the toilet rough-in with (I'm assuming) the toilet vent behind it. The second picture showing a pipe coming down from the toilet vent and into the ground with the laundry washer connected to it from behind the wall. The third picture is questionable.

My questions are:
1) Where do I put my sink? Can I connect it directly to the toilet vent and still have the sink drain into the sewer line, or can I connect it to the pipe that is connected to the laundry (picture 2)?
2) If I do put my sink behind the laundry, can I use the opening at the very bottom of the pipe or is that used for a clean out.
3) What is in picture 3? It's located a few feet from the toilet rough-in and just filled with rocks. Is this the shower drain?

Thanks!

**oh'mike** · 09-09-2011, 07:01 PM

Toilet hole should be 12" or 12 1/2" from the studs----

Yes you should be able to use the laundry wall and plumbing for the sink.

Using the toilet vent for the sink is not a good plan.

Hole in floor could be for a tub--1 1/2 " drain or a shower--2" drain--open it up and see what you have,

**TheEplumber** · 09-09-2011, 07:06 PM

Answers per UPC-
1 Use the toilet vent for the lav drain.
2 No, that is a clean out
3 Appears to be a backwater valve. It protects your basement from sewer backup should the sewer main clog. You should find another lid below the gravel.

Adatwist · 09-11-2011, 09:34 PM

I've dug out the all the gravel from the pit and found a 2" horizontal capped pipe. Does that mean i need to install a P trap for the shower drain?

thanks

**oh'mike** · 09-12-2011, 06:20 AM

Correct--P-trap for shower or tub.