أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
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
