While water softener technology is the same for a house as it is for a large hospital, for example, a large disparity in volume requirements makes the design, installation, planning and service more complicated for a commercial water softener.

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High Efficiency Water Softener

When sizing a water softening system, doing the math and getting reasonably accurate volume demand information in gallons is critical to determining the size of the commercial water softener or softeners. Water softening resin has a finite amount of water that it can soften before it needs to go into a backwash (or self cleaning) cycle to clean the resin beads for continued softening. Additionally, determining the size of the brine tank for softener salt storage is also very important to keep the tank filling requirements at a reasonable level for the personnel maintaining this.

Commercial water softener Eliot, MA

Twin Commercial Water Softeners (High Capacity) Installed in Hospital

Space available for the equipment is another important consideration. To avoid a long piping run to and from the system, a good location needs to be selected. Additionally, any space restrictions will need to taken into consideration when sizing both the softener and brine tank sizes.

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Hard Water Scale


In a hospital setting or other setting where water is being used essentially 24 hours per day, a back up softener may be required. The main reason for this is when one softener goes into its backwash cycle, the second softener will be able to provide a steady supply of softened water to the facility. Without this backup, unconditioned water will be pulled through the system while the softener is in the backwash cycle. In the photo at the top of the page, this system is feeding make-up water to the boiler. It has to be clean water 24 hours a day.

Effects of hard water on pipes

Scale Build-up

For more on water softening and how it works, see the link at Water Softening.

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H2O Care, Inc. is an established regional water filtration and testing firm, founded in 1989, serving Southern Maine, Southern New Hampshire, Massachusetts and Northern Rhode Island. Reach us at [email protected] or 800-539-1100. See our articles published in Water Technology Magazines at https://publications/.
commercial water filtration Eliot, Maine

Commercial Filtration