Electric motors operate on the principle of separating the CL2 electrolyte from the salt (Nacl) in the water by about 3000 – 3500 ppm to form the oxide. HOCl is a strong oxidizing agent, the principal disinfectant. 
Electrolysis of NaCl  
2NaCl + 2H2O -> 2NaOH + H2 + Cl2 
Cl2 + H2 -> HOCl + HCl Electrolysis of electrolysis for filtration system 

Advantages:  + No odor or irritant . + Effective sterilization because HOCl compound is 100% stronger than OCL. + Cost savings during use. + Easy to buy kitchen salt. + Make safety for swimmers.

 Cons: + High initial investment cost

+ The electrolysis process will increase the pH (pH balance with dilute HCl). 
Inefficient in high pH environment. 
+ Water is salty. 
+ Do not create unpleasant smell or cause irritation. 
+ Effective sterilization because HOCl compound is 100% stronger than OCL. 
+ Cost savings during use. 
+ Easy to buy kitchen salt. 
+ Make safety for swimmers.