d amount of sulfuric acid. The addition of sulfuric acid produces a considerable amount of heat. If PVC structures are present, monitor the temperature of the solution and do not allow it to exceed 49 C (120 F).
Cool, with mixing, to 29 C (85 F).
Add 0.41 g/L of Manganese Sulfate monohydrate pre-dissolved in DI water (CAS #1003496-5, tech gradeorbetter).
With mixing, add the required amounts of PC-600 Carrier and PC-600 Replenisher.
Fill to final volume with deionized water and mix.
Check t