1.Add water when the water line becomes lower than 50% and electrolytic solution is unnecessary.

2.About 3 months later, when electrolytic solution turns black, dirty or lose effectiveness, please replace the solution. Firstly reverse the machine and pour the solution, and then use clean water to wash the electrolysis trough and then add new electrolytic solution.

3.When adding water and filter agent, or adding water and filter agent, turn off the flame gun and power firstly, and then turn on the adjusting valve of flame guns and discharge residual gases.