Automatic Air Bleeder
U.S. Patent Number 7,025,079
Not all Automatic Air Bleeders are Effective.
Air locks have been the deadliest enemy of spa heaters. Especially after spa empty and refill, consumers are likely not to remember to bleed the air out of the spa or even how to bleed it.Regal Spas invented a simple, inexpensive yet most innovative device to automatically bleed air locks from the spa’s heater chamber. Our Patented Automatic Air Bleeder is equipped with a cylindrical rod that goes up and down by the pressure of the pump. When the high speed pump is “On” the cylinder goes up and seals against an O-ring preventing pump water from escaping through the bleeder hose. If the high speed pump is “OFF” the cylinder goes down by gravity allowing the air trapped in the heater chamber to automatically escape through the bleeder hose. This effective method automatically bleeds the air from the heater chamber without wasting valuable high speed pump performance.
Other standard method adapted by spa plumbers: they connect a hose from the pump drain plug to an open drain in the spa bypassing the jets and the filter(s) and they call it an Automatic Air Bleeder. As the pump comes “ON” the water circulates through the Air Bleeder hose back to the spa constantly, bypassing the jets and the filter(s). This method results in wasting valuable high speed pump performance that the consumer is paying $ for without getting the benefits at the jets. This method of air bleeding may be effective to prime the pump, however it may not be effective to bleed the air from the heater chamber when low pump is “ON”, and does not prevent a heater dry fire if the air is trapped on the upper surface inside the heater housing. In addition, low speed pump may not be strong enough to push the air trapped above the water in the heater chamber even though they have water circulating through the manifold.
Automatic Air Bleeder