The use of sanitisers of any ...
Published by Ashley White, Head of Training and Education - Water at Davey Water Products Pty Ltd
The use of sanitisers of any sort (e.g. chlorine [beware the carcinogens], ozone, hydrogen peroxide, UV etc.) for a rain water tank is a cure to a problem, and not a prevention to a problem. Correctly managed rainwater tanks need very little cure provided you do the prevention correctly. Prevention means keep the tank clean and free of organics, use a first flush device/s, filter the inflow, install an internal floating suction to take water from the aerobic zone inside the tank (about 50mm below the surface) and lastly use a benign sanitiser just in case something goes wrong in prevention.