[MikeDan]

First post here,

I want to move my laundry room out of the lower basement to our upper basement where it will be more convenient.
The new location will not have a laundry tub. Our house has a septic system and the main drain exits the house fairly high on the basement wall so it would be difficult to tap into the main drain. What are my options?

[speedball1]

The average washer pump will pump a 8 foot head so connecting on to the main is your best bet,
The main will have to be cut into and a 4 X 2" wye, trap and AAV(air Admittance Valve) be installed. Also a washer check valve must be installed where the hose exits the washer. B The washer hose to be connected to the trap raiser with a compression fitting and bmade a water tight connection. Questions? Click on back, Tom

[MikeDan]

Thanks for the advice Tom. I had to put this response in the answer area so that I could add the pics. Hope that is OK.

Hopefully the pics are viewable so you can see what I am talking about.
In the second pic I have traced with the red line where I would run the drain line from the standpipe and p trap.
The standpipe would be on the right side of the window that you see.
I have figured on a 20" standpipe which would be 66" above the bottom of the washer. The washer will be on a stand
Raising it off the floor. I will tear out the existing drywall to bury the pipes until they get to the end of the finished wall. That is
Where the drywall changes colour in the pic. From there there would be a 90 bend running along the joist and then another 90 to go
Through the joist. Once through the joist another 90 would take it down to the horizontal run in the first pic.
Is that OK or are there two many bends in that plan?
As far as the AAV, the only place I can see putting it would be once the drain pipe exits the finished wall and before the 90 elbow that
Takes the pipe along the joist.
That would be approximately 7 feet from the p trap. Is that too far?
I have read up on AAV's a bit and came across other's saying they should not be used for mechanical drains
Such as washing machines. I would prefer to use one as it will be next to impossible to get to a normal vent and just wanted your take on
Others concerns about using them on a washing machine drain.

Why the compression fitting at the stand pipe? Also wouldn't a check valve at the washer be problematic as regards to plugging up with lint?

I look forward to more info from you. Thanks

[MikeDan]

Sorry about the huge pics. If you right click on them and open in new tab they make more sense.