I have a Pro Flo submersible pump in an 18" diameter sump (not my design), backed up by an Aquanot II battery system (Thanks to suggestions here) The main pump has an unadjustable switch and cycles in about a 7" range. In the worst weather we've had in 5 years in the house, the pump cycled 14 seconds 0n, 15 seconds Off. Right now, it's about 10 seconds On, 65 seconds Off. I think the best alternative would be to increase the sump pit size, but I'm an 'old retired guy' and do not look forward to cutting concrete and digging. Any suggestions? By the way, the primary pump has lasted 5 years, but I don't sleep well.