First flush systems are a critical part of your rainwater harvesting system, the RotoTank ™ First Flush system helps to divert the sediment filled water to a holding 50 litre wall mounted Tank, as the tank fills the sediment settles at the base of the tank, the tank has been designed to allow the sediment to settle down to a central point where a fitting can then connect to the supplied tap at which point you can then connect a hose pipe. As the water rises in the tank the sediment settles, ultimately the clean water diverts to your rainwater harvesting tank and you prevent these contaminants from going into your system.
When it rains those first initial millimetres of rain clean off all the debris from your roof, this can include twigs leaves and dust and bird droppings, but in many parts of South Africa this can also include Monkey and other animal droppings.
