This washer drain stinks!

[Zim]

Hope the photo showed up. There’s no pee trap or vent to this washing machine drain. It’s just a single pipe up from the crawl space. It does stink most days. Any suggestions to add trap and vent certainly appreciated. There should be room in the next stud bay to the left except for the outlet there.

 

[WorthFlorida]

The better way since you have a crawl space is to move the drain to the left and place the trap under the drain box. Is there a floor above or just attic space. Attic space you can sexily add a vent through the roof. Have you been under the floor to see how it is connected to the main stack? A hack in one place always leads to another.

According to the Universal Plumbing Code, the standard for washing machine drain sizes is 2 inches. The P-trap should be between 6 and 18 inches from the floor, while the pipe should be between 18 and 30 inches high from the floor.

 

[Sponsor]

 

[Reach4]

Any suggestions to add trap and vent

So moved, and I trust there will be plenty of seconds.

18 inch minimum on the vertical into the standpipe.

 

[WorthFlorida]

View attachment 75353
So moved, and I trust there will be plenty of seconds..

Just too many PEX pipes in the way for a 2" trap.

Search for: Where are air admittance valves allowed?
Can you put a sure vent in the wall?
No, you can not bury these things in a wall, you can put them in a wall and put a vent grill on the wall such as you have on your heating/cooling system to cover it and for access purposes.

 

[Zim]

Thank you for the input! Crawl space is a strong term - there might be 8”below the flow joist to dirt. Haven’t been down that far yet. A few plumbers that have been down all say that’s not how I would’ve done it- but...There’s just attic so through the roof is an option. Could a studor redi-vent be covered in a wall? Ya one hack after another... much appreciated!

 

[Reach4]

Thank you for the input! Crawl space is a strong term - there might be 8”below the flow joist to dirt. Haven’t been down that far yet. A few plumbers that have been down all say that’s not how I would’ve done it- but...

If you need more space, a hard worker (preferable smaller) with a small shovel and a bucket could increase space. Maybe you shuttle buckets, and your worker fills them.

Could a studor redi-vent be covered in a wall?

Yes, but unlikely since there is no trap... but there is a possibility: there could be a trap under the floor. Not permuted by US codes, but it works in Canada from what I have read.

 

[Terry]

You need a trap for the standpipe and it needs to be vented, an AAV if you go that route needs to have access to air and for replacement when it fails and needs replacement.

They make all kinds of boxes for these.

 

[Jeff H Young]

no need going under house just rebuild it and run the aav with the access panel. reach 4 and terry put good pictures up yours can be a little differant general idea .

on second thought if thats an 1 1/2 " inch pipe and not a 2 you might be going back down under at least get 2 inch down through floor it might drain ok if it has been draining well.

 

[Reach4]

Just too many PEX pipes in the way for a 2" trap.

Maybe one of those crossovers could go over the box, and one could route under the U-bend.

Maybe the box could be moved up to get more space. Gonna be tight.

 

[Jeff H Young]

Changing to another style box might help like ones Terry showed in pic fit all that in wall. I wonder how such a botched job came about?

 

[GReynolds929]

They couldn't have run the drain in the left bay and not drilled thru 5 studs twice huh?‍

 

[Tuttles Revenge]

They couldn't have run the drain in the left bay and not drilled thru 5 studs twice huh?‍

Posts, beams, footings, overhangs, apprentices.... list could go on and on.

 

[Terry]

Posts, beams, footings, overhangs, apprentices.... list could go on and on.

Yep, the picture was taken on a nearby street, I can't remember looking downstairs to see why they did it that way.
When I was doing new construction, I didn't have a camera with me. Now I wind up taking pictures of other peoples work sometimes for rough, as most of my work now is service work. The days of lugging tubs upstairs and plumbing crawlers, not so much anymore.

At least they are now 2x6 walls now on the exterior.

 

[Jeff H Young]

Dang Carpenter sure put a lot of wood in the way! His rough in looks good to me nice and clean.