Tapping into existing 3/4" supply and 3" drain to add washer

by John Marvin   Last Updated May 15, 2019 17:21 PM

I understand there are a lot of variables to something like this, so I'm going to try to provide enough detail that people can at least understand the question here:

I have a washer/dryer I'd like to relocate to my garage. There is already a hot/cold PEX supply exposed in the garage, which runs up to supply one sink and one shower in a finished room (no other fixtures). There is also a 3" drain running from that room. Is it possible to tap into both the supply and drain lines with branches running along ceiling/wall and down to desired washer location as shown in the marked-up photo?

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