Laundry DWV In Tight Spaces

grubburg · Feb 19, 2023

I'm looking to relocate my laundry machine to an exterior wall for drier venting and convenience during a larger plumbing overhaul.

Here is the space I'm workiing with. There doesn't seem to be a lot of room for my drain lines and P trap, due to water heater connections (3/4 pex, gas line).

Would it be an appropriate idea to put the P trap in the crawl space to save room? Any online pictures of models on how to work in this space?

grubburg · Feb 19, 2023

something like this an option?

grubburg · Feb 19, 2023

Here it is with the vent

Matt1963 · Feb 19, 2023

Crawl space is behind that wall?

If so then yes.

chandler48 · Feb 20, 2023

IF this is an outside wall, that would be the last place I'd want water. Can you either eliminate the water supply lines in the wall or find some other way to ensure against freezing?

Nealtw · Feb 20, 2023

We are outside the house already, I do not see a problem with anything here
Leave all the pipes in that wall, where the heat from the house is.

u2slow · Feb 20, 2023

I had some extra depth behind my machine, and the laundry tub right beside... so I plumbed it all on the wall surface with 3 tidy floor penetrations. Worked out ok. I wasn't into weakening the 2x3" stud wall I had.

grubburg · Feb 20, 2023

The other side of that wall is a crawl space and my kitchen

chandler48 · Feb 20, 2023

grubburg said:
I'm looking to relocate my laundry machine to an exterior wal

OK I was going by this with my comment. So it ISN'T an outside wall, but adjoining the kitchen. You're good.

Laundry DWV In Tight Spaces

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