Patent ID: 7381279

Claim:
A portable water purifying device in combination with a spray device, said spray device removably attached to an end of a hose which is attached to a supply of tap water, said portable water purifying device positioned in said spray device and comprising: a portable purifier cartridge comprising a sequential arrangement of at least a first bed of a SAC ion exchange resin having a length from 5 inches to 7 inches followed by a second bed of a WBA ion exchange resin having a length from 4 inches to 6 inches, and, optionally, followed by one or more additional beds of ion exchange resins selected from the group consisting of SAC ion exchange resins, WBA ion exchange resins, SBA ion exchange resins, WAC ion exchange resins, and mixtures thereof; wherein said portable purifier cartridge comprises ion exchange resin beads that are less than 0.6 mm in diameter; and wherein said tap water flows from said hose into said spray device and into said portable water purifying device and through said portable purifier cartridge at a flow rate of greater than 14 gallons/minute/ft 3 of the total volume of ion exchange resin and effluent water having a conductivity of less than or equal to about 50 micromho is provided for spraying from said spray device.