Poolvergnuegen 4 Wheel Pressure Pool Cleaner The revolutionary new Pressure PoolCleaner uses your existing pump and filter for power. This means energy savings. Internal steering system, means NO unreliable backup valve. Patented Power Adjusting Turbine maximizes the pressure from your pump. No need for booster pump. No sweep/whip hose that puts dirt into suspension. Extra large dirt bag. Pressure relief valve with NO screen due to HUGE venturi jet. Largest vacuum path with massive inlet. Pressure Hoses simply SNAP together with revolutionary no leak, no coil hose swivels. Installs quickly and easily with no tweaking necessary.