Media-assisted Crystallization (MAC)

Template Assisted Crystalization

How does OneFlow® MAC work?

OneFlow media granules attract dissolved calcium, magnesium and bicarbonate ions to the surface of the media where they become supersaturated and converted into harmless microscopic crystals. Once formed, these crystals then move away from the media and flow freely through the plumbing system without causing damaging scale in plumbing fixtures, water heating equipment, and appliances.


“Hard” water contains a high mineral content (primarily calcium and magnesium that naturally occur in groundwater). Over time, hard water can cause scale to build up in pipes and plumbing, increasing your energy costs and shortening the life of your appliances.


Why is scale harmful to plumbing and appliances?

  • It reduces the inner diameter of pipes and fittings, ultimately leading to restrictions in flow rate and pressure loss
  • It can form on internal moving parts of valves and components, affecting their intended purpose or worse, causing safety failures
  • Heating elements can become coated with scale, reducing efficiency and increasing operating costs
  • Over time, scale becomes highly insoluble, making it extremely difficult to remove, which can lead to costly remediation efforts

How MAC compares to other scale prevention technologies