Sump pump questions

[Horace]

Not as good as toilet water. But I guess you have to choose one or the other sometimes.

[89th]

Plus, I was outta floss

[Aqua Letifer]

Just don't mess with the wires right after you've fixed your terlet.

[89th]

Alright, probably a dumb question. The melting snow (and lots of rain today) has awoken the sump pump. It’s been going off frequently today, which is good.

However it’s going off every 2 minutes or so. Enough that I opened the pit cover and saw that it indeed goes off to remove a few inches of water but when it’s done, the water level rises back to the trigger point again, within 2 minutes.

Here’s the stupid question. I don’t see any water coming in through the drain pipes (you can see the two black pipes in the pic) so is there any other way water can seep into the pump well? I presume not and, if correct, imagine I need to repair the check valve so that water being discharged up the discharge pipe isn’t just cascading backwards into the well.