Air Channel

Some bath and spa products are designed to allow “bubbling” air into the water from the bottom of the product. This is in addition to feature of hydrotherapy jets that discharge a mixture of water and air at high or low velocity or high or low volume. The ability to bubble air into the water is accomplished by installing a manifold on the back surface, and installing an air blower to blow air through it. Holes are drilled from the top surface into this manifold cavity.

The manifold is called an air channel.