The centerpiece of these water purification systems has become reverse osmosis. In conjunction with sound pretreatment, RO has proven itself to be the safest, most reliable, and most economical method of purifying water for dialysis.
Water plays an important, life-sustaining role for dialysis patients.
And as such, the water used for this critical function must be of special quality. When hemodialysis started to blossom over 20 years ago, many dialysis centers used water right from the tap. We now know that certain contaminants in water supplies can cause severe complications in dialysis patients. Sophisticated water purification systems are currently used to purify water to a level determined to be safe for the patients. The membrane sieves organic molecules and repels salt ions while passing pure water through the micropores in its surface.