How many inches of Potassium Permanganate solution should be used per regeneration cycle?
My home water treatment system uses Pot. Permag. to clean the Manganese Green Sand. It has a small tank to store the solution. Last night was the first time I have monitored the cycle, and it delivered 12" (everything that was in the tank). I wonder if that is normal, or is there a proper amount and how do you regulate it?