What is the role of a brine tank in water treatment?

The role of a brine tank in water treatment is specifically to hold salt pellets mixed with water. This mixture creates a concentrated saline solution, which is essential in the regeneration process of water softening systems. When water is softened, it passes through a resin bed that removes hardness minerals like calcium and magnesium. Over time, the resin becomes saturated with these minerals and needs to be regenerated to restore its effectiveness. The brine solution from the tank is flushed through the resin bed, allowing the sodium ions from the salt to replace the hardness ions, thus rejuvenating the resin for continued use.

In contrast, storing excess water pertains to different components of a water treatment system, filtering chemicals involves various filtration technologies, and measuring fluid conductivity is associated with monitoring the water quality but does not describe the primary function of a brine tank. Therefore, holding salt pellets mixed with water is crucial for maintaining the operation of water softening equipment and overall water treatment efficiency.