basement water causes 7

https://getgatewaywatermoldsource.valiantfield.com/posts/why-your-basement-floods-every-time-it-rains-insights-from-gateway-water-mold

Heavy rain saturates the ground, and if your home's grading or gutters are off, water seeps through foundation cracks. Poor drainage, clogged downspouts, or a failed sump pump can also send runoff right into the basement.