In the process of producing water for your facility, one or more of the treatment steps will concentrate the impurities in a waste or blowdown stream (such as, filtration systems or distillate systems). Calcium and magnesium could reach a concentration level where they will precipitate out as scale. Softening the water will remove the calcium and magnesium.

It depends on your water supply. At certain levels of hardness you can use an anti-scalant as your water treatment to prevent scale formation in the RO unit. RO projections can be used to evaluate the effectiveness of anti-scalant injection for your feed water analysis.