The blower The blower is a device that forces air into the water through a battery of jets (from 12 to 16, depending on the model) arrayed along the bottom of the tub. The millions of air bubbles generated by the blower are lighter than water, and will rise to the surface, delivering a soft and delicate massage. A pleasurable and restful sensation that combines with beneficial effects on the circulation, especially when the blower is used in conjunction with the whirlpool. A standard feature on the Seaside, the blower is also available with all Hydrosonic packages (may not be combined with Hydrosilence).