In Green Wave-NAC treated water, the seed crystals themselves provide a far greater surface area for new scale formation. Therefore, new scale preferentially deposits on this continuously replenished stream of suspended crystals rather than on the water contact surfaces — especially those surfaces that are at elevated temperatures. In untreated water, the scale forms on the inside walls of pipe, exterior of fixtures and all heating surfaces.
A water softener is a water treatment system that reduces the hardness in the water down to below one grain per gallon. In order to do this, chemicals such as salt are used in the treatment of the water. A salt-based water softener will provide brighter laundry using less soap and will prevent the buildup of scale around the shower. Many people love their water softeners for these exact reasons
The benefits you will see from a salt-free water conditioner are somewhat similar to that of a water softener. A salt-free water conditioner will break up scale and prevent it from sticking together, making it easy to remove without the need of additional cleaners. Water treated by a salt-free water conditioner causes the calcium and magnesium to stick together in seed crystals through a physical media.