Hey, I've been doing a lot of research and it seems like this forum consistently came up on searches and has some of the more helpful and knowledgeable members.
That being said, I would like to hear advice on the plumbing to my washing machine in my 1968 home. The drain pipe overflows when the machine dumps its water. It is a 1.5 inch copper pipe I came to find out after removing the drywall. The insulation and drywall is ruined because the water box was rusted out at the bottom. The valves leaked when I moved in and a combination of that and the recent drain overflows were heading me down a moldy road so I figured I better go all out and stop putting band-aids on the issue and completely fix it.
The drain is maybe 8 feet from the kitchen sink which has the closest vent. As you can see, there is no trap. I guess the main part of my question is what do you recommend for replacing the copper drain pipe? 2 inch PVC with a trap? How would I fit a trap between the hot and cold lines?
Also, should I raise the water box? The drain is currently 34" high which seems low by modern standards. You'll also notice the connection off the cold water that supplies the ice maker. Is there a better way to do that than how it's set up now?
Thank you so much for any help you can provide and sorry for such a long message!