Well they are coming in where the water pipes run out. Stuffing the holes is something that I have been wanting to do, although these rats will chew through bulletproof glass if they want to. I was tempted to concrete the exits up at a point, but then id have to chip away at it if I need to pull the pump up. I am willing to try the steel wool though. Thanks for the advice.
Very happy to see you as well, I hope that you have been well!