Hot Tub Chlorine Granules

Chlorine Granules are a granular form of chlorine that can be added directly to your hot tub water.
Before using your hot tub, you should ensure that there is enough free chlorine in the water to kill any bacteria and oxidise organic matter introduced by bathers.
The advantage of using chlorine granules is that they are both quick to dissolve and relatively pH neutral, which makes them an excellent sanitiser for hot tubs.