Hey all
I've been reading online trying to find an answer and can't seem to get a clear picture

I am installing my washer and dryer on my main level bathroom. They will stacked
Just piced up a washer outlet box an trying to figure out how high I need to install it at

The manual says the drain can be anywhere from 24" to 96". But I've been finding info that says the box must be installed at 42" (the bottom of the box)

that creates a problem for me since the dryer vent would be in the way...
what's the deal there? am I ok if I install the box at 36" ?

Oh.. it's a front load washer and the standpipe will be 2" pipe

Thanks

P

You should be fine at 36" to bottom of washer box(which is also top of washer standpipe). I see no problems here. Go ahead with your project and please let us know how things work out.

In addition to MDG77's post...

We install recessed box about 42" from the floor. Reason for this height is that it will end up just above the top of the washer and you will be able to reach the valves to close them. In my area, bottom of the trap should be 6" from the mud plate and raiser bet. 30" minimum to 36" high measured from the trap connection. I drew a sketch for you to better demonstrate my point.

Hey guys... thanks for the speedy replies!
Milo, thanks for the graphics, it does make things easier to understand.

Based on your diagram, it seems the only way to reach the standpipe height of 32 to 36 is to have the box at 42 anyway

In my case if I put the bottom of the trap at 6" that gives me only 20 inches of pipe (measured from the box to the edged of the p trap connection)

now, in the manual it says that drain much discharge in a pipe at heights between 24 and 96". Bu if I look at their diagram. They show a drain going into a pipe and that pipie going directly into the ground. So does that mean that they want the standpipe to be between 24 and 96 or those measurements are based on the machine's top water level line?

Thanks a bunch to hep answer a novice!

P

We place our washer stand pipe traps as close to the floor as possible ( I have yet to hear a explanation as to why UPC mandates a trap to be 6" off the floor) to give as much stock to the stand pipe as we can. We attempt to maintain at least 36" on the stand pipe and set the bottom of the washer box at 42". The higher the stand pipe the more volume area to contain a surge and the less chance of a back up. At no time should either the stand pipe or the washer box b e located below the washer flood rim, Good luck, Tom

Well...
After some considerations I think my best option is to run the p-trap below the floor (in the basement)
That would give me the extra pipe length ( at least an extra foot)... also make getting to the cleanout easier...

I'll have to take a closer look tonight but I think I have the room down below for the p-trap and to run my vent

Thanks!

Nope, not an option, can't install the trap below floor(at least not by code). Front load washer don't fill to the top, therefore you can lower the height of standpipe. UPC states that standpipe shall be minimum of 18" and max of 30". When they state trap must be six inches above floor, they mean trap weir(giving room to install you shaped portion of trap) With a stackable washer and drier you can't have the washer box at 42" as it will be in the way of the drier vent(at least the setups I've seen, just did one last week). Your best option here is to offset the washer box and drain/vent off to one side of the washer, It doesn't have to be centered. Just move the washer box over so it doesn't interfere with dryer vent. Then you can follow above advice (not meaning my advice, but all other advice above, as they are dead on answers). Good luck and please let us know how things work out. Lee.

Nope, not an option, can't install the trap below floor(at least not by code). Front load washer dont fill to the top, therefore you can lower the height of standpipe. Upc code states that standpipe shall be minimum of 18" and max of 30". When they state trap must be six inches above floor, they mean trap weir(giving room to install u shaped portion of trap) With a stackable washer and drier you can't have the washer box at 42" as it will be in the way of the drier vent(at least the setups ive seen,,just did one last week). Your best option here is to offset the washer box and drain/vent off to one side of the washer,, It doesnt have to be centered. Just move the washer box over so it doesnt interfere with dryer vent. Then you can follow above advice (not meaning my advice, but all other advice above, as they are dead on answers). Good luck and please let us know how things work out. Lee.


Well, that's funny.. that's exactly what I ended up doing. It dawned on me this afternoon... what if I move the box to the left... and as luck would have it the echaust on the dryer is not centered... it's got more room on the left. Meaning I was able to install my box withouth interfeering with the exhaust!

So,now wverything is as it should be... box is at 42 ish... p trap will remain above ground... I'm happy now... tomorrow I start the actual plumbing!

Thanks for the tips guys