The Water Quality Association (WQA) tests standards and certifies products that treat drinking water. WQA certification is mainly based on contaminant (mineral) removal. The EasyWater system does not remove any minerals from the water, rather EasyWater changes the physical shape of those minerals and is a descaler, not by WQA definition a “softener”. A softener takes out calcium and magnesium and replaces those with salt.

The WQA does not have standards for testing descalers.

At present, NSF International does not certify any of the non-salt systems that control hard water or scale deposits without reducing the actual hardness concentration of the water. They only offer certification for scale control for systems that incorporate a chemical feeder for inorganic phosphates or silicates or both to control scale.