"Legendary Workhorse" Known as the "legendary workhorse", the Tigershark has earned its respect across the years as the most capable, reliable and efficient robotic pool cleaner. There is simply nothing else like it. While steps, drains and other obstacles tend to hinder other robotic cleaners, they are less of an issue for the Tigershark, which would hardly get stopped by anything. The Tigershark will strenuously vacuum, brush and scrub all of your pool floor and walls up to the waterline as no