First time poster, long time site reader. You all do a great job here. Good reference information for us DIY types, in keeping everybody safe and within established standards. Thanks for that!!
I am in the process of moving my washer and utility sink to another wall in the basement. The current washer and utility sink connections are in the basement concrete floor and the washer drains by backfilling through the utility sink drain and then gravity draining (due to no venting, I assume).
My design has the utility sink and washer moved to the same wall where a 3" copper DWV is. This DWV services a 1st floor bathroom toilet, shower, and sink only. I have had 2 plumbers look at connecting into the 3" copper DWV and both said in can be done. That said, I have a few questions as I have never done this, although I am an avid DIY type that has taken on multiple projects and am determined to 'do it right'.
The questions are as follows:
(1) Any glaring problems with this design (attached drawing)?
(2) What is the best way to cut 3" copper DWV? hacksaw, sawsall, etc?
- The total distance from the DWV to the utility sink is 2.5ft and the washer drain is 5'. Would a need exist for a vent at all here?
- The main sewer drain to the street is directly below the 3" DWV, so does this influence the desing in any way?
Thank you for your time.