AUTOMATIC POOL COVER PUMP? Pool cover pump is equipped with an automatic sensing switch. The water pump will automatically turn on when the water level exceeds 2-1/8 inches. After the water level is below 3/4 inch, it will continue to run for 25 seconds and then turn off. Pool cover pump automatic on off can be left unattended to remove standing water without worry. POWER AND EFFICIENTLY? 1/4 HP pool cover pump moves up to 2800 gallons per hour, which drains up to 2 times faster than a standard pump. Bottom suction design can remove water down to 3/4 , allowing operation in slightly dirty water. Great for removing water from pools, pool covers, tarps, window wells, hot tubs, boat covers, rooftops, garden ponds and more. SAFE AND RELIABLE DESIGN? Pool cover pump is made of thermoplastic material, which enhances its durability and corrosion resistance. Built-in temperature control core prevents the motor from dry burning when in short of water and protects the water pump from damage. Strainer base protects the pool cover, filters debris and keeps the pump stable. GOOD COMPATIBILITY? Equipped with a 29.5FT UL plug power cord, providing a wider operating space. The included 1-1/4inch NPT, 3/4inch GHT and 1/4inch GHT adapters provide two angle interface options for users to freely choose. The included check valve effectively prevents water from flowing back into the pump, greatly extending the service life of the pool cover pump. CUSTOMER FIRST? Our pump is designed to last, and our after sales support reflects the same commitment. Our customer service team operates round the clock, committed to resolving any queries or issues within a swift 24-hour window.