Wayne 57729-WYN1 EEAUP250 1/4 HP Automatic ON/OFF Electric Water Removal Pump I switch technology turns pump on and off by sensing the presence of water; removes water down to 3/8 in. Of surface 1/4 HP, maximum flow rate is 1600 GPH at 10 feet of discharge lift Can be left unattended to remove water. Flow rate is 3100 Gallons per hour Submersible reinforced sealed thermoplastic construction The water level must be at least 1-3/4 inches for the pump to cycle, prime, and operate. Water levels less than 1-3/4 inches will not allow the impeller to contact water therefore no water will be pumped. Garden hose adapter