While not intended to outperform the speed of electric submersible pumps, Pump Marvel is great in situations where you can’t use electricity (Pump Marvel recently saved one person’s basement from flooding when the power was out and the sump pump wasn’t running), or in areas where, for safety reasons, you prefer not to mix water and electricity, such as draining hot tubs and taking the water off of winter pool covers.
Every gallon of fresh water that enters Pump Marvel will suck up as much as 3 additional gallons from the vessel being drained, and eject 4 gallons out of the discharge hose.
Multiple Uses: Draining spas and hot tubs/ Safely remove all of the water from pool covers/Preventing flooded basements during a power outage/Removing unwanted water from construction sites, flat roofs, patios, lawns, washing machines, dishwashers/Effortlessly bail boats/Emptying blow-up pools, kiddie pools, fountains and koi ponds.
Pump Marvel works on the Venturi effect using pressure from a garden hose rather than electricity to pump water.
For more details -link to Pump Marvel Web Site