Iron filter and softener backwash smell in sump pit

[J.Appleseed]

Hello I recently myself repiped my whole house in copper and installed a new pressure tank, 3 stage cartridge filter, iron reducing well filter, and softener. The filters backwash to my sump pit, which in turn discharges out the side of the house and to a drainage ditch at the road. I have a strong rotten egg/sewer smell coming from my sump pit that I assume is from the backwash (when I agitate the bottom of the pit with hose water the smell is horrendous). In Chicago and the ground freezes so trying to find a solution that doesn’t involve drilling through my foundation below the frost line and installing a French drain and/or tying to the drainage ditch? Can I cap the sump pit and vent it somehow? Is there maybe a way to tie a radon ejector fan to a capped sump pit and kill two birds one stone? side note, the membrane filter is only 3 months old so idk if too much rust/sulphur and I should shock the well? Rookie/greenhorn here with very basically no plumbing background..

 

[Reach4]

Yes.

When you say Chicago, do you mean within the borders of the City of Chicago? I suspect no.

 

[Sponsor]

 

[J.Appleseed]

Yes.

When you say Chicago, do you mean within the borders of the City of Chicago? I suspect no.

Sorry no, I am unincorporated and well outside the city

 

[Reach4]

So some will get a radon meter, such as https://www.walmart.com/ip/Safety-Siren-P4SU1-Pro4-Series-Radon-Gas-Detector/211512865. Takes a few days to get a reading. Then put a low-cfm radon fan, sucking from a cover on the pit, and run pvc blowing outdoors, creating a slight vacuum. Radon levels drop.

Your smells should get sucked out too.

 

[J.Appleseed]

So some will get a radon meter, such as https://www.walmart.com/ip/Safety-Siren-P4SU1-Pro4-Series-Radon-Gas-Detector/211512865. Takes a few days to get a reading. Then put a low-cfm radon fan, sucking from a cover on the pit, and run pvc blowing outdoors, creating a slight vacuum. Radon levels drop.

Your smells should get sucked out too.

Thank you so much. So just to be sure, the smell in the sump pit from the backwash is not uncommon?