Overview
The top of the softening tank is equipped with 2-inch and 4-inch inner wires, and a multi way valve is installed for water treatment. The softener uses strong acidic cationic resin to replace the calcium and magnesium ions in the raw water. The water flowing out of the equipment becomes softened water with lower hardness, and its chemical reaction is: 2RNa+Ca2+(mg2+)=R2
Ca (mg)+2Na+When the resin adsorbs a certain amount of calcium and magnesium ions, it must be regenerated by using a flow rate of 2% -6% concentrated salt water (6 meters/hour) to replace the hardness of calcium and magnesium ions in the resin, restore the softening exchange capacity of the resin, and discharge the waste liquid: its chemical reaction is R2Ca+2Na+=2RNa+Ca2++
The entire regeneration process includes four core steps
1. Backwash - loosen resin layer
2. Salt absorption slow washing - exchange reaction occurs
3. Rinse (positive wash) - Rinse off the calcium and magnesium ions exchanged from the chemical reaction
4. Inject water for the next regeneration
注: 建议图片大小150px*50px 
