Get Rid Of The Water
If it’s like a swimming pool in your basement, get the water out with a gasoline-driven pump. Be sure to keep it outside and lower the intake of the hose through an available window. Gas-powered fumes release toxic fumes, so avoid placing it in an enclosed space. Lower the water level no more than two feet per day. If you pump too much water within a short period of time, pressure from the water-saturated soil outside could cause the basement walls to collapse. If there is still water remaining after pumping you can use a shop vacuum to suck out the remaining puddles.