Wash machine drain pipe flood

[birdies62]

personally i dont think the aav or lack of vent is related but maybe its the machine if water can run full blast without back up maybe its the 90 you have o9n top and just wont take it id cut that crap off and plumb it right regardless since it dosent work.

Thanks for that comment-do you mean take the bendy pipes out and just have a pipe go straight across from the drain pipe then down?
I just have my self convinced that water makes so much turbulence it gets backed up in those turns but then again you would think water would just flow through.

 

[Fitter30]

Confused 2" must run into the 4" main drain going the main sewer line. Camera should know how many turns and how long the 2" is. Speed queen top loaders 24 .5 gpm other brands 15-17 gpm top loaders.

https://www.houzz.com/discussions/5957496/speed-queen-awn432sp113tw04-rinse-water-exiting-like-fire-hose

 

[Sponsor]

 

[birdies62]

So the saga continues with a bit of good news. Right after the s trap is a 2 inch metal pipe that takes a 90 degree turn. There was a lot of buildup in there which they cleaned out. Then I had them set up the AVV according to reach4 picture (thank you for that). Unfortunately that is behind the wall so its not as high as it probably should be to keep it within reach behind the access panel. It actually held up longer but water eventually came out of the pipe. I am considering putting larger pipes in there but it still goes into the 2 inch metal pipe in the concrete so not sure if that would even help? But an interesting development-just for the hell of it I ran a load on the Perma-press setting and everything was fine. Apparently everything is the same as a normal cycle but the final spin is slower so the water doesnt come out like a fire hose. I can deal with that.

 

[Jeff H Young]

sounds like a poor desighn on the machine or our plumbing codes if cfonventionaly plumbed systems wont handle it and the manufacture isnt up front about it . but yours is not plumbed correctly unless I was to go out and plumb a house wrong its hard for me too conclude the cause . I feel like 2inch is too small for the machine

 

[John Gayewski]

Your plumber/s is/are an/a idiot/s.

Wtf.

Have them properly plumb the drain (an aav won't help with draining faster. You need a real vent to make things drain faster. Air won't clear out of the way for the water wall with an aav, it will only replace air behind the wall of water.

You almost certainly have a plugged or partially plugged drain. Or a drain that isn't sloped enough or both.

If for some reason the 2"pipe after being cleaned can't take the flow of a washing machine (which it should) then despite what your washing machine salesman says you can restrict the flow on the drain hose this won't hurt your washing machine. Or return it and tell them they sold you a piece of shit, lol.

 

[Reach4]

So the saga continues with a bit of good news. Right after the s trap is a 2 inch metal pipe that takes a 90 degree turn.

Are you sure that it was 2 inch (2.375 OD)? Codes used to allow 1.5 inch pipe (1.90 OD if schedule 40 steel).

Is the overflow just suds, or is it liquid too?

I would extend the standpipe to 42 inches above the trap weir. That should give more pressure to help push the drainage through.

 

[birdies62]

Are you sure that it was 2 inch (2.375 OD)? Codes used to allow 1.5 inch pipe (1.90 OD if schedule 40 steel).

Is the overflow just suds, or is it liquid too?

I would extend the standpipe to 42 inches above the trap weir. That should give more pressure to help push the drainage through.

No Im not really sure-thats what the 2 guys told me. No suds - just water. After what they did this time the overflow held off for maybe a minute instead of seconds but it still came right up the pipe. It looks to be right around 40" counting the pipe in the wall and the piece they attached. Im fine with using the slower final spin since that water drains with no problem. Its when its on heavy duty the fast spin and water flodd happens. I just feel something should work. They coming back one more time and am considering a bigger (rounder) drain pipe but if everything else is 2 inches I dont know if it would do anything. Maybe hold the water off a little longer since the pipe could hold more. I dont think it will hold 15 gallons ! I wish I had room for a laundry sink but it just a small room for washer-dryer - toilet and a small sink. I hate to think what this bill will look like - yikes.