How important is a sump pump in a central Iowa home?

In central Iowa, a sump pump is not an accessory; on the poorly drained glacial till of the Des Moines Lobe it is often the single component standing between a dry basement and a flooded one. The region's dense, clay-heavy soil holds water against foundations after rain and snowmelt, so most homes with basements rely on a drain tile system feeding a sump basket, with the pump ejecting water away from the house. During an inspection we test that the pump actually runs, check that the float moves freely and the check valve holds, confirm the discharge line carries water well away from the foundation rather than dumping it beside the wall to recirculate, and look at the basket itself for evidence of how hard the system works, a high water line in the pit tells us the pump earns its keep. We also flag the upgrades that matter most here: a battery or water-powered backup pump, because the same storms that fill the pit are the ones that knock out power, and a sealed lid, which matters doubly in Iowa since open sump pits are a major radon entry point in the nation's highest-radon state. If the home you are buying has no sump system at all, we evaluate whether the basement shows signs of needing one. It is a small machine with an outsized job, and we treat it accordingly.