25 litre drum of Sodium Hypochlorite
Sodium Hypochlorite is used within the water industry to chlorinate the water supply. The main advantage is that microorganisms cannot build up any resistance to it.
Sodium Hypochlorite is effective against Legionella bacteria and bio film, in which Legionella bacteria can multiply.
The reaction of Sodium Hydroxide with Chlorine gas produces Hypochlorous acid. 'Active Chlorine' is then formed in water.