DR,

Somewhat true but also somewhat not. Many softener controls were simple timers where they started a regeneration every "x" number of days, whether the unit needed it or not. The newer electronic controls measure the amount of water passing through and base regeneration on that (along with the hardness, amount of salt, etc programmed in). In our case we noticed a significant drop in salt usage with the new unit with electronic controls. Both the old and new units were set with the same hardness level, but most times our new unit will go 6 or 7 days without regeneration, yet when we have a house full of guests for a weekend it may regen in 3 days. Our old unit was set to 4 days, and most of those types of controls only allow a max of 5 days between cycling.

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