Customer reviews on Amazon and Home Depot indicate that Scale Blaster does work mostly as intended. The Scale Blaster is an electronic water softener that works by ionization.
According to customers, the Scale Blaster product is easy to install and doesn't require opening up the home plumbing system. It can take a long time, up to a few months to really have a noticeable effect on scale and hard water. This is primarily due to how the Scale Blaster works by hitting magnesium and calcium ions in the water with a specific frequency to change them. The electronic frequency makes it so that the ions are no longer 'sticky' and do not cling to the insides of the pipe. Over time, the scale that is already present breaks down and pipes start to clear out.