Water Tech Corp’s Pool Blaster SpaVac is a battery-powered vacuum cleaner for hot tubs and spas. With its patented design, SpaVac features a valve that prevents the return of debris once it’s been sucked in. Powered by three C-cell batteries, the unit’s built-in cleaning crevice nozzle and wheels allow it to move about easily for well over an hour. Weighing just 0.7 kg (1.5 lb), SpaVac does not require the use of hoses, cords, or external pumps. The complete kit comes with a sectional pool pole for easier, more convenient ‘extended-reach’ cleaning, and an ‘on-board’ debris catcher with a reusable filter bag.