I am adding a new toilet and sinks to an existing 3" drain in our shop. I've y-ed off that drain to 2" for the sinks, I will have 1 sink inside bathroom and 2 sinks out side that wall for dual shop sinks.
Is there a height the drain pipe should be at coming out of the wall to except the unions for the sinks?
Or does it depend on the sinks and theres not a specific height?
My existing bathroom has a pipe coming out of the wall for the sink at 9.5" to the center of the drain pipe.
How do I go about posting a pic of what I've got going on?