Hello,
I have installed an ejector pump in my basement to pump out the water from my slop sink (Washer machine dumps into) into the drain which is higher than the slop sink. One 2" line goes from ejector pump to the drain out. the other 2" is the vent and it is above the slop sink spill plane. I added a Studor Mini vent (Air addmittance valve) to the top of the 2" line to supress the sewer smells but it has made the ejector pump stop working. I have unscrewed the mini vent and the ejector pump work right away. the concern is the vent pipe/line is open to bad smell to permeate. I have a picture of my install and hope somebody can help.
Thank you

The vent really needs to go outside.

if the smells don't come out of the tank that means no air is coming out either. so, if no air can come out then no water can go in. like blowing up a balloon except the tank can not expand the way the rubber balloon does.

It's equivalent to installing a rock on the end of the pipe in what it accomplishes for you.

Or a potato into a car's exhaust pipe.

Can someone help. As discussed, i tried installing a studer vent on top but it shuts the pump down (Air pressure). Should i loop the vent line into the main drain line (Wet vent)?
thx



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