Not only is Chlorine or bromine important in the sanitation process of your spa but balancing you PH is too! Why you may ask? Well there’s a couple of reasons why.. Number 1 is bathing comfort, getting the PH levels correct will enhance your bathing experience as the water wont be to Acidic or Alkaline which means the water is softer on the skin! Number 2 is that unbalanced water can cause either corrosion if the water is too acidic or calcium build up if the waters alkaline. So its important to keep them levels correct to prevent any damage occurring on your spa and also so you get the best bathing experience every time you jump in!