Although they belong to the same chemical family, there are some differences between chlorine and bromine. When you dissolve Chlorine Granules they produce hypochlorous acid; this is the active compound that will kill the bacteria and other unwanted pollution introduced into your pool or spa.
As the chlorine does its job killing the bacteria it can form other compounds called combined chlorine (chloramines). These compounds have no killing power and are, in fact, a nuisance. They need to be removed by periodically by shock dosing the pool with a shock treatment.
The pH of your pool water is much more important for chlorine than it is for bromine. The pH needs to be kept between 7.2 – 7.6 to ensure optimum conditions for the chlorine to kill unwanted pollution. When necessary you can raise the pH using pH Increaser (Soda Ash) and lower it using pH & Alkalinity Reducer (Dry Acid).
Finally, the chlorine level could be decomposed by sunlight in outdoor pools, but to prevent this there is a stabiliser called cyanuric acid built into our Chlorine Granules and Tablets.
