This suction-side automatic pool cleaner requires no external power or electricity—plugs into the existing pool-pump suction line and cleans the pool automatically as the pump runs during its normal daily cycle, eliminating manual vacuum-scrub sessions and freeing up 30-60 minutes per cleaning day. 12 hose sections combine for 33 ft / 10 m total reach, enough to cover the farthest corner of a 20 x 35 ft residential in-ground or above-ground pool without dragging the cleaner by hand to a new position; hose count can be reduced for smaller pools to avoid slack that tangles during operation. Diaphragm suction technology operates quietly vs. buzz-loud budget cleaners—no mechanical racket poolside during afternoon relaxation, family swimming sessions, or patio dinners with guests; an extra replacement diaphragm is included for long-term maintenance without a separate parts order. Works across shotcrete, tile, vinyl, fiberglass, and concrete pool surfaces, so the same cleaner handles a vinyl-liner above-ground pool and a concrete in-ground remodel. Flow regulator adjusts movement speed so the cleaner climbs walls and traverses floors without hanging up in corners, at step edges, or on main drain covers. Requires a minimum 3/4 HP / 1600 GPH pool pump for optimal performance. NOT designed for stair cleaning or large-leaf pickup—use a skimmer or leaf rake for big leaves first. For easier hose connection and better seal, soak both ends of each hose in water before attaching them.