Ecodyne Corporation

Ecowater Systems, Inc.

Dennis G Winberg

Michael E Drager

Duane D Nowlin

Edward J Tischler

Jeffrey A Zimmerman

Gary W Gauer

Adolf F Beckert

John R Nelson

Thomas J Weber

Water softener control and indicating panel

Water softener

A method and apparatus for selecting the quantity of salt to be used during each regeneration of a water softener system. The quantity of salt used during each regeneration is approximately equal to the quantity of salt needed to regenerate the resin bed to a preselected design capacity, which is less than the maximum capacity of the resin bed. The design exchange capacity is approximately equal to the exchange capacity of the resin bed at a particular salt dosage, wherein the exchange capacity of the bed at the particular salt dosage divided by the particular salt dosage is generally equal to or greater than 2850. The system is regenerated when at the end of any preselected time period, the percentage of the design capacity of the resin bed used since the last regeneration cycle exceeds a predetermined percentage. In determining the salt dosage used during each regeneration cycle, the exchange capacity of the resin bed is determined for various salt dosages. The available exchange capacity of the resin bed is determined by subtracting the exchange capacity of the resin bed used since the last regeneration from the selected design capacity of the resin bed. The salt dosage used during each regeneration is approximately equal to the salt dosage of the resin bed at the design exchange capacity less the salt dosage of the resin bed at the available exchange capacity of the resin bed. The apparatus of the present invention utilizes a micro-computer to automatically make the necessary calculations to determine when to regenerate the resin bed and to determined the proper salt dosage fill time to the brine tank prior to each regeneration. A turbine water meter located in the soft water outlet line measures the water usage since the last regeneration.

Method for regeneration of a water softener

A dispenser for dissolving a solid chemical into a flowing liquid includes a refillable cartridge that is held in a removable housing. A small amount of the liquid is diverted and is flowed upwardly through the chemical to dissolve same. The dissolved chemical is mixed with the rest of the liquid in an apertured protrusion that extends above a small liquid outlet hole in the top of the cartridge. The protrusion directs the liquid flow toward the liquid outlet opening of the dispenser.

Chemical dispenser

Water softened by ion exchange is pumped through a reverse osmosis material. The water treated by reverse osmosis may be stored under pressure and the reverse osmosis waste stream is recycled through the ion exchanger. The stored volume of water treated by reverse osmosis is approximately equal to or less than the volume of water that can be stored in the ion exchanger.

Method and apparatus for treating water

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Cottage Grove, MN, United States of America

Dennis G Winberg