How Do Water Softener Brine Tanks Work?
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Brine Tank
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The brine tank holds salt absorbed in water, however in some cases it might contain potassium instead. The reason for this is that a home might have a septic system or the salt itself might be unhealthy. With septic systems, a high concentration of salt could effect the waste disposal process. And with individuals with high blood pressure or other health issues, absorbing salt into the skin from water could increase blood pressure or aggravate their condition. Potassium is a good substitute for this, and works in the same way in the softener system.
Mineral Tank
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The plastic beads in the mineral tank remove the substance, such as calcium, that makes the water hard. This is done as the water flows into the main tank. The minerals are attracted to the beads coated in salt, and attach themselves to the beads pushing the salt off. The slightly salty water then moves into the home for use. When the beads are coated with the hard minerals, the system begins removal by pulling the water from the brine tank. This water has a more concentrated solution of salt or potassium and is able to force the hard minerals off of the beads. The system then starts a flush cycle that pushes the minerals out of the tank. Once out, the system is rinsed, leaving only the salt that managed to attach back onto the beads.
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