why sump pumps fail 18

https://whatismostcommonreasonsumpinfo.solsticebrief.com/posts/what-is-the-most-common-reason-a-sump-pump-fails-insights-for-homeowners

Sump pumps usually fail because of a few common issues: the float switch gets jammed, the pump motor burns out from running nonstop, or debris clogs the intake. Age and lack of maintenance also play a big role—if you never clean the pit or test the pump, it’s probably going to give out when you need it most.