Whirlpools are characterised getting jets assisting the bath about midway up and too a suction point (similar to some colander) with the bottom factors. This type of system produces hydro-massage by sucking water from the tub and pumping it outside the jets quietly under stress and strain. To increase the pressure of your jets most whirlpools possess a control on top of the bath which allows air turn out to be sucked throughout the jet water. On the plus side is the strong suction power which...