This efficiently designed cleaner can filter and scrub your in-ground residential pool floor and walls with ease. Any surface (vinyl, gunite, and fiberglass) will do. Equipped with a top access filtration system, you don’t have to turn it over to empty the filter cartridges ever again! You just remove it and clean it with a garden hose instead. The SharkVac XL™ runs independently of your pool’s pump and filter system. It does the dirty work for you. While it calculates the size of your pool it simultaneously programs itself to match those specifications in just a 3 hour time span. It also boasts an Out of Water Sensor which will completely disable the motor once the cleaner leaves the water. The Beach Entry Sensor can pick up on when it moves out of the water and reverses it in a different direction. You don’t have to sit around and wait for it to complete the cleaning cycle-get back to whatever you were doing and let this cleaner work its magic!