why sump pumps fail 15

https://sumppumpfailurestlouispoint.raidersfanteamshop.com/what-causes-sump-pump-failure-in-st-louis-a-homeowner-s-guide

Sump pumps often fail because of a stuck float switch, debris clogging the intake, or the pump overheating from continuous use without a break. A dead backup battery or power outage can also leave you with a flooded basement, especially during heavy rain when you need it most.