I talk to many people each day, inside and outside the water industry, and the claims by many companies who are trying to sell salt-free, saltless or no-salt (call them what you will) are really confusing. Many are also not rooted in fact. I try to keep an open mind and I am receptive to new and improved technology, but it first has to pass the “smell” test. Devices that “cure” a plethora of water problems and “one size fits all” are dead give-aways to false claims. Let the buyer beware. Frankly, most do not do what they say. However, there is no reason to be confused. The German Technical and Scientific Association for Gas and Water (DVGW) has developed protocol for testing scale prevention properties of these types of devices. This testing protocol is called DVGW Standard W 512.
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