Plumbing washing machine drain with sump?

[plumbdumb]

I have a sump station in my house that takes on the washer waste water and A/C condensate water. My basement has an odor that gets really bad when the washing machine runs for the first time after sitting for a couple of days. I want to "properly" plumb the washer waste line in an attempt to get rid of the foul odors. I currently have the line running on the floor, up the lift pipe and back down the pipe into the sump basket. The idea was that this would create a trap to block the smell. Maybe the smell is coming from the open sump basket (POS) or maybe it's a combination but let's address the proper way to plumb the washer drain line first. Looking at these pictures what is the best way for me to plumb it? Thanks

 

[johnjh2o]

The sump line should not be connected to the sewer line. You can't pump ground water into the sewer system.

 

[plumbdumb]

The sump line should not be connected to the sewer line. You can't pump ground water into the sewer system.

I should have stated in my original post that I have a septic system and the sump is just a lift station to pump the washing machine and A/C condensate water up to my septic. No ground water enters the lift station.

 

[Caduceus]

The problem you are having is that the sump is not sealed with an air-tight lid and vented. Anybody who has a waste water or soil water ejection pit that is not sealed would have the same problem.
You may have to customize a cover given the odd shape (not a standard circular sump pit), but another option is to install a self contained ejection unit.
Here is a link to Saniflo, as an example of what is out on the market.
http://www.saniflo.com/
I'm not promoting this specific product, but feel it may narrow down or answer some of your questions if you visit the site.
If you are lookin at cost as a factor, you could probably do a cover yourself, but be sure you are able to tightly seal it, but still access it for inspection and service. You may also be able to run a vent through the block wall, but it appears that you have a deck back there and the pit may cause some odors to vent in that area.
Of course, if this is the type of project that you can't do or don't want to do, you know what options you have when calling a plumber to do it for you.

 

[johnjh2o]

If you're not using the sump for ground water why not connect the washer drain to the waste line. The pump on the washer will have no problem lifting the water to the height of your waste line. Of course it will have to be trapped and vented.

 

[plumbdumb]

If you're not using the sump for ground water why not connect the washer drain to the waste line. The pump on the washer will have no problem lifting the water to the height of your waste line. Of course it will have to be trapped and vented.

That's the reason for my post and detailed pics John. I am looking for the correct way to go about it.

 

[plumbdumb]

Where on the lines in pic #4 should I tie into? Also how would I plumb the trap/vent? It seems like a long ways up to push the water. Who here is good with those CAD drawing thingamabobs? That would really help me. LOL after all my name is "plumbdumb"

 

[chukar]

Where the 90° turn is coming up from by you window out of the vertical, run the pipe another 6" the drop plumb in a second 90° drop the line 8" and run it along the bottom of one of your cinder blocks, after 6-12" put another right angle up, 7" and tie it back in to your existing drain what your doing is trapping some water in the line so that you don't get the sewer smell coming back down. It won't be vented through. Also as stated above make a lid for your sump, make sure it's air tight with some weather stripping.

 

[johnjh2o]

Where the 90° turn is coming up from by you window out of the vertical, run the pipe another 6" the drop plumb in a second 90° drop the line 8" and run it along the bottom of one of your cinder blocks, after 6-12" put another right angle up, 7" and tie it back in to your existing drain what your doing is trapping some water in the line so that you don't get the sewer smell coming back down. It won't be vented through. Also as stated above make a lid for your sump, make sure it's air tight with some weather stripping.

Your kidding right! You're going to advise someone to put a running trap on a pumped line? We're supposed to be professionals not hacks.

 

[plumbdumb]

well I knew it couldn't be long before varied opinions started flowing. hopefully we can keep it civil. I was trying to avoid it but I may just need to have a plumber come out and do it the right way. This way they can also give me an estimate on installing a modern sealed lift station. It would be a pain to fab a descent cover in this pos with the location of the pump motor etc. I used to have a plastic bag over it taped to the floor.