كيف تقوم بضبط الجرعة المثالية للكلور في مياه الشرب؟

By installing pump and Tranzmitr and chlorine water injection dosing method

You first have to determine the oxygen demand and run a breakpoint curve... you add chlorine until the demand is met and then treat until you have a1ppm free residual...

thanks but whow to do this breakpoint curve