hey guys I been reading a lot on this forum recently so I decided to make an account and ask for help. so I recently purchased my first home and I was beginning the renovation process and fixing things to my liking when I came across the washing machine drainage, issue? as you can see in the pics the main sewer line leaving the house is about half way up the wall about even with the top of the washing machine. I noticed the guy prior had put in a drain above the washer even with the ceiling height of about 7 feet. it's a horizontal drain thay connects to the main drain, however there is no p trap or stand pipe. my question is can i redo the plumbing with a p trap and a slightly larger standpipe then what is there and it be workable? and is that drain way to high for the washer to pump out. if not I could use some cost effective ways to fix. thank you guys. trying to post pics now, sorry. I also forgot to add that the current hright from the floor to the top of that current drain pipe is 85" my washer says max height of 96" ... I know it's not ideal but it i redo that drain with a p trap will it work?