A temporary pump with no water sensor - Oh My! That's a jack-leg, screwed-up installation created by someone who doesn't understand how to tackle the problem. The simple fact that the crawl still has standing water should be proof to any 5th grader that the system is not doing its job. There's no trying to save this installation. They need to hire a contractor who actually knows what he's doing to start over from scratch. Brandon, sometimes it's easy to get sucked into the middle of other people's problems, but there's no good in it for you. Don't let your business practices be dictated by others. As Walter says: all risk, no reward.