Interchangeable jet modules for a spa and/or bathing system

An interchangeable jet module comprising:

• at least one jet;
• a manifold with a mounting surface for mounting a base portion of the at least one jet;
• a jet plate with a mounting surface for mounting a top portion of the at least one jet;
• a first array of air and water chambers underlying the manifold mounting surface;
• a second array of air and water chambers underlying the manifold mounting surface and in fluid communication with the first array of air and water chambers through a valve;
• a third array of air and water chambers underlying the manifold mounting surface and in fluid communication with the first array of air and water chambers and the second array of air and water chambers through a second valve,
• wherein the air chambers of each of the first, second, and third arrays are configured to receive air from an air supply and communicate the air to the at least one jet, wherein the water chambers of each of the first, second, and third arrays are configured to receive water from a water supply and communicate the water to the at least one jet, and wherein the at least one jet communicates air and water to an external environment,
• the first, second, and third arrays of air and water chambers being arrayed vertically in a cross-sectional plane generally parallel to and underlying the manifold mounting surface, and
• actuation of the valve cutting off fluid communication between the first array of air and water chambers and the second array of air and water chambers.

A method of manufacturing an interchangeable jet module, the method comprising:

• forming a hollow structure from a thermoplastic material, the hollow structure having a front and a back;
• molding jet structures into an exterior surface of the front of the hollow structure;
• internally forming a dividing wall between the front and the back of the hollow structure;
• and
• tacking off the dividing wall to form at least two chambers within the hollow structure, the at least two chambers including an air chamber and a water chamber,
• the molded jet structures being in fluid communication with the at least two chamber, such that a mixture of air and water flows through the molded jet structures, and
• the molded jet structures for delivering the mixture of air and water into a containment, such as a spa.