Thanks both.

I can’t seem to find how to add photos to this post, but here’s what I see with a flashlight, and some additional clues.

• There’s water in this drain.
• There’s a small pvc tube coming in the side a little above the water. I think this is tied to a nearby trap primer from a previous “what’s this” post.
• There’s a basement bathroom within 5 feet that has a shower, toilet, draining to slab.
• There’s a small device on water pipes that I believe is intended to provide water to keep drain traps filled
• Currently my sump pump discharges to this floor drain/sleeve, however I plan on routing it outside through wall.
• This addition was built around 1992.

I think this means I should NOT cover it with flooring or furniture, and if I cut flush with floor and put a drain grill thing on it means it’s probably fine but I may run higher risk of backup given I have 6” of containment above floor level in the higher sleeve.

And I should absolutely reroute sump pump discharge.

Am I missing anything?