The @ease system automatically releases just the right amount of chlorine and minerals to save you hassle and money. This product perfectly accompanies the Spa Frog Floating System or In-Line System by starting up a freshly filled spa with an initial chlorine level. The effervescent action helps the chlorine dissolve faster and the fizz tells you it's working! For best results use Frog Jump Start after balancing the water and before using your Spa Frog System.