$9 Drill pump really works ( I couldn't believe it) - YouTube
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1/2 HP Submersible Sump-Effluent Pump with Vertical Float Switch 4400 GPH
Milescraft Drill Pump 750 Demo/Review - YouTube
720 GPH Drill Pump 3/4" Male Garden Hose Fittings, Turn Drill Into A Water Pump | eBay