Patent ID: 7632399
Filing Date: 2009-12-15
Classification: B03D

Abstract:
1. A fluid treatment system, comprising: a pressurizable tank; a fluid inlet leading into the tank; a fluid outlet leading out of the tank, the fluid outlet being connected to a faucet; an air inlet leading into the tank; a compressed air source connected to the air inlet; a float disposed inside the tank, the float rising or falling in response to a level of fluid in the tank; a float-actuated switch assembly connected to the float, the float-actuated switch assembly outputting an “ON” signal when the float is at a high position and outputting an “OFF” signal when the float is at a low position, the “ON” signal starting introduction of compressed air into the tank via the air inlet, and the “OFF” signal stopping the introduction of compressed air into the tank via the air inlet without requiring use of a timer; and a purge valve that is openable in response to the “ON” signal to allow fluid to flow out of the tank during the introduction of compressed air into the tank, the purge valve being connected to the fluid outlet, the fluid outlet having an opening that is substantially below a minimum level of the float.