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Water softeners

The City of Watsonville would like its green businesses to have the highest salt efficiency commercially available for water softeners.

Typically that includes a demand initiated regeneration (usually controlled by a electrical conductivity sensor).

The softener should be certified by NSF or ANSI to have a salt efficiency of no less than 3,350 grains of hardness removed per pound of salt used if installed in 1/1/2000 or later, or no less than 4,000 grains of hardness removed per pound of salt used for regeneration if installed after 1/1/2002.

Businesses can use a portable exchange tank service instead of regenerating onsite, which would waive the requirement to switch to potassium chloride.