Water Pressure, the Venturi Effect and Vacuum.
These three simple principles are what make Pump Marvel work.
Pump Marvel is a hot tub drain pump that uses pressure from a garden hose, rather than electricity, to pump water. While not intended to outperform the speed of electric submersible hot tub drain 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). It also works great in areas where, for safety reasons, it may be preferred not to mix water and electricity, such as draining hot tubs and taking the water off of winter pool covers.
Pump Marvel will drain a hot tub down to 1/8″ in less than 20 minutes.
Pump Marvel is $49.99 and includes a 12′ expandable 1 1/4″ (sump pump) discharge hose that is much easier to store than traditional hoses. Pump Marvel will also accept a 1 1/2″ pool hose.