How pure is rainwater?

While rainwater itself may be pure, by the time it is collected, transported to storage tanks (or reservoirs) many types of pathogens are likely to contaminate the water along the way. As rainwater tends to be stored for some time and filtered, the pathogenic contaminations can grow in stagnant water and in some cases, in filters.
Ultra-violet disinfection of rainwater is a popular solution.

Ultra-violet disinfection of rainwater: Process Flow

Rainwater collection -> Storage tank -> Filtration -> UV disinfection

Rainwater Disinfection on Farms & Houses

Advance ADV-C Series UV units are popular for reliable and easy rainwater disinfection of flow rates up to …