Chlorine is the most popular treatment for keeping swimming pool water chemistry balanced because it's highly effective and relatively low cost. Other disinfectants include bromine, ozone, and ultraviolet (UV) radiation.
Chlorine can be added to pool water in several ways, including liquids, tablets and granules. Liquids can simply be poured into the water. Tablets can be added to a chlorine dispenser, or in the pool’s swimmer basket. Shock granules can be added directly into the pool water where they dissolve and are then distributed by the pool’s filtration system. They should NOT be added into a mixer unit as they will probably mix with water and can explode inside such an enclosed dispense.
Shock granules can be added at the inlets and small quantities into a skimmer - which then flows directly into the filter and disinfects the filter bed. Be careful to avoid spilling or splashing yourself as you can risk spoiling clothes or damaging your eyes, and your body.
Shock granules usually have a chalky base, so help to add to the calcium hardness level of pool water. In hot tubs and heavily used pools it can be better to use an un-stabilised product such 'shock chlorine granules' or liquid - know as sodium hypochlorite.
Shock chlorine is also known as calcium hypochlorite - sold by us in 5kg and 25kg drums.