The flow rate of 6.4 million gallons per day is treated with sodium silica Florida. The raw water contains point 3 mg per liter of Florida, ion, what chemical feed rate in pounds per day will increase the fluoride concentration to point 7MGL assume the purity of sodium silica fluoride. It's 97% use the following molecular weights. Sodium 22.9 g promote silicon 28.09 g per mole and floride 19 g. Promole