I am a volunteer at a teen center and want to plumb up a double sink. The drains have to meet commercial code. Please let me know what type of fitting I need to use (traps, tees,etc) Copper is required by our code. Yes, I can solder.

Thanks!

I don't know your local codes but I don't know of any inspector that would turn down a trap for each tub. Come off the stub-out with a 2" wye and pick up each tub with its own dedicated trap. Good luck, Tom