The Premium Hi Output Water Powered Backup Sump Pump. Basepump is an extremely reliable, very powerful, water powered backup sump pump system. With no battery to wear out or maintain, no charger to plug in or monitor, it is designed as an automatic, independent system from the primary sump pump. Basepump is essentially in a class by itself. Mounted on the ceiling, high above the sump, it doesn’t have to fight the downward force of the water that most competitors’ pumps must push up vertically. For this reason, Basepump consistently removes more water per hour than other water powered backup sump pumps and even rivals the best battery powered backup sump pumps, short- and long- term. So instead of a flooded basement because of a sump pump failure or a power failure, install a water powered Basepump backup sump pump before it happens. When the water in your sump rises above normal for any reason, the Basepump float is lifted. This activates a valve, sending municipal water under pressure through the Basepump Ejector. Then, acting like a giant soda straw, it draws the sump water up and ejects it to the outdoors. Highest pumping rates in the industry. Most reliable operating system on the market. Install independent from primary sump pump for greater reliability. OR Install with discharge connected to main pump discharge. OR Install with our Atmospheric Vacuum Breaker option to eliminate back-flow issues. Constructed of heavy duty, corrosion resistant polypropylene. Simple to install ; detailed instructions included. Low cost of operation (zero cost until it actually runs, then just the cost of the water). No moving parts to break and no maintenance required. No Battery or Charger needed to operate unit, to maintain or to replace. Independent battery operated Water Alarm included NO CHARGE. Unlimited operation time as long as the water supply is available. 30 day product satisfaction guarantee. Gallons of Sump Water Removed per Hour. Lift at These Static Water Pressures. Water Supply Pipe To Use. Homes with normal volumes of sump water. Homes with higher volumes of sump water. Buildings with very high volumes of sump water. Basepump uses 1 Gallon of City Water to remove 2 Gallons of Sump Water at an average of 90 lbs. PSI and 10 Feet Lift. Sometimes images shown are generic and not meant to infer that they are actual. The parts will work as intended and are high quality and precision tested. Track Page Views With. Auctiva’s FREE Counter.