Filter Softener Valve

Regeneration process

(2) Brine draw & slow rinse position

   Brine draw: after the backwash is completed, turn the handle or the program to control the motor to rotate, and driving the moving disk to rotate, and forms a state with the fixed disk. Raw water goes through the through hole of the moving disk, enters the fixed disk, and flows through the injector. When negative pressure is generated at the nozzle outlet, the saturated brine in brine tank is sucked and mixed with the inlet water (part of products use the soft water which is from the soft water tank or produced by another tank as the inlet water for regeneration, and mixed with the softened water) to be diluted to a certain concentration of salt solution, from top strainer, and flows into the resin layer downwards, to restore the exchange capacity of resin. The waste water returns from bottom strainer and riser pipe to the fixed disk, through the blind hole's diversion of the moving disk and is discharged from the drain. 

Slow rinse: after the brine is sucked from brine tank, the inlet water continues to clean the resin in same station, liquid flow direction and flow rate as brine draw. Meanwhile, the brine remaining in the resin tank will be used to continue to ion exchange with resin. Since the slow rinse state and the brine draw state is basically the same, the two are usually set to the same step, but after brine in the brine tank is sucked up, the air check valve installed in the brine tank isshut down to block the brine line connector to prevent air sucked to resin tank.