Patent ID: 7163617
Filing Date: 2007-01-16
Classification: A61L,Y10T

Abstract:
1. A method for dispensing an admixture of fluid and water in a proportioning and dispensing unit comprising the steps: (a) selecting a first metering tip comprising a first orifice size and coupling the metering tip to a chemical inlet port of an eductor, said eductor further comprising a water inlet port and an outlet port; (b) connecting the water inlet port to a water supply source, said water supply source comprising a pressure regulator having a first water pressure set point; (c) placing a holding container at the outlet port of the eductor for receiving an output stream from the eductor; (d) selecting a first hose comprising a hose length, a first end, a second end, and unit gradations along at least a portion of the hose length; (e) placing the first end of the first hose in fluid communication with the metering tip; (f) filling the hose length with a quantity of fluid to a starting fluid level; (g) activating the eductor to produce the admixture of fluid and water at the outlet port; (h) de-activating the eductor to stop producing the admixture at the outlet port; (i) determining an amount of fluid dispensed from the eductor by measuring the unit gradations on the first hose between the starting fluid level and a second fluid level measured after the eductor is de-activated; (j) determining a percent ratio of fluid dispensed to water used to dispense the fluid through the eductor; and (k) if the percent ratio of fluid to water is not as desired, changing at least one of the first metering tip having the first orifice size to a second metering tip having a second orifice size and the first water pressure set point of the pressure regulator to a second water pressure set point, and repeating steps (f) to (j).