Hey everybody I purchased my first house and I do have some DIY experience, but plumbing knowledge is a thing I lack. I have a finished 5th bedroom in my basement that is going to be the new site of our laundary room so I can make my 1st floor half bath larger. So I found the drain behind a wall in my basement and it does not go all the way under the basement floor. If you look at the picture, what are some recommendations for how to plumb the standpipe and p trap for the washing machine? I'm not exactly sure what I can do (that is to code) to tap into that drain. THANKS A TON EVERYBODY.