Patent ID: 6723232
Filing Date: 2004-04-20
Classification: C02F

Abstract:
A dual operation water purification apparatus for purifying drinking water from a supply of water having a quantity of free residual chlorine comprising:a first water purification means for removing a quantity of the free residual chlorine from drinking water, said first water purification means having an inlet and an outlet; a second water purification means for removing solids from drinking water and having an inlet and an outlet said inlet of said second water purification means being connected to said outlet of said first water purification means; a third water purification means for treating drinking water for bacteria and having an inlet and an outlet, said inlet of said third water purification means being connected to said outlet of said second water purification means; a bypass conduit having a first valve connected intermediate an inlet end and an outlet end; a second valve connected between said inlet end of said bypass conduit and said inlet of said first water purification means; and a third valve connected between said outlet of said third water purification means and said outlet end of said bypass conduit whereby when said inlet end of said bypass conduit is connected to a supply of drinking water having a quantity of free residual chlorine and said outlet end of said bypass conduit is connected to a point of use, said first valve can be closed and said second and third valves can be opened to provide purified water to the point of use and said first valve can be opened and said second and third valves can be closed to provide chlorinated water to the point of use and prevent the chlorinated water from entering said inlet of said first water purification means and said outlet of said third water purification means.