- Shake-to-start siphon vacuum for freestanding hot tubs & above-ground pools
- Vacs up grit, sand, debris from bottom
- May also be used for draining water
- 8 ft. Hi-flow discharge hose
- IMPORTANT: For any siphon to work, the water surface must be higher than the discharge point (end of the hose), so that gravity makes the water flow down-hill. Otherwise, a siphon will not start. Not for inground spas & pools.