First I want to thank everyone here for giving their time to help others. My plumbing skills are limited but I have put in a water heater, a few sinks, toilets, and garbage disposal.
This seems fairly simple but I want to make sure I'm ok with this set up. I want to move my washer/dryer hookup to upstairs. I'm probably within 1 or 2 wall studs from the existing downstairs drain.
Here are the questions
1) I was going to "T" off of the existing sink plumbing, is that ok?
2) With the new P Trap, should go through the wall stud(s) upstairs and then straight down using 1/4 bend fittings to where the original drain was and hook into that?
3) Can I run the new pipe directly into the old P trap? The reason I ask is that it seems it may be easier to access but if I can't then I won't.
4) Is there anything else at this point I should be thinking about?
I haven't opened the wall downstairs yet but so far am I on the right track? Thanks for any help.