Whirlpool System type 3 Combine water with air The Type 3 system means your favourite bath is equipped with a combination of an integrated Hydra Jet massage system with 6 adjustable jet nozzles arranged on the side of the bath, and an air massage system with 16 air jets. Both systems can be operated independently of each other. Air is blown in via the blower, then heated. This preheated air is transported through the 16 air jets in the base of the bathtub, providing a gentle full body massage whilst also stimulating the circulation. This system is controlled by an electronic button that is recessed in the edge of the bathtub. The air regulator manages the intensity of the massage jet by mixing the air. The integrated dry run protection prevents operation of the massage pump without water. The optional interval control provides a pulsating massage effect. Residual water draining takes place via the whirlpool pump and the system. The whirlpool system is fully installed in your desired bathtub and is then immediately ready for connection. A drain set and overflow set also comes with this whirlpool system. The arrangement of jets, nozzles, and operating elements depends on the model. As soon as the whirlpool is built in, then an inspection opening must be provided in the aggregate when installing the whirlpool.