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Single-Tank Water Softeners

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Single-Tank Water Softeners

How Single Tank Water Softeners Work

A “Single Tank Water Softener”, is a system with 1 resin tank and 1 brine tank. The resin or mineral tank contains resin beads that remove the hard water minerals. The brine tank stores the salt. “On-demand” single tank softeners count how many gallons you use. Once you reach capacity, they regenerate in the middle of the night. During regeneration, the system goes into bypass. No soft water is available during this time. If you hit the limit in the middle of the day, you’d run out of soft water.

To avoid running out of soft water, most systems are sized with 30% additional capacity. You still run the risk of running out of soft water during very heavy water use, but your odds are improved.