Invented the most powerful and efficient pond vacuum available to contractors, called the Water Vac Solids Separation System. Made of solid surgical stainless steel. Rolls to where you need it to go with ease. Uses 110 GFI hookup and a regular garden hose. No need to empty the water feature. The Water Vac recyles the water through the three stage filtration system and comes out clean back into the water feature. Just ask the pros what they use.