1) Prevents Limescale
Topping up dishwasher salt can lead to less limescale building up in your machine as it softens the water as it flows into the cleaning chamber. All in all, a better running machine also means there is less chance of other parts malfunctioning. You can ask your supplier for the hardness levels in your area and some can tell you through their website. It’s good to get into the habit of checking salt level regularly (i.e. once a month) and making sure that salt tank/reservoir is always filled. In some machines there would be a red light blinking when salt levels are low, please re-fill salt tank accordingly when that happens.
2) No more spots and watermarks
Spots and watermarks can become a constant problem without the use of Finish Dishwasher Salt. These marks can occur when the water is hard, causing detergent to perform less effectively. Since dishwasher salt effectively softens water, these heavy deposits of limescale will not accumulate in your dishwasher and will help keep your dishes looking cleaner.