Can A Diverter Help Mitigate Flooding Risks Around The Home?

Choosing the Right Diverter

A diverter is a crucial component in managing rainwater runoff and mitigating flooding risks. When selecting a diverter, consider the size of the roof catchment and the expected volume of water to be diverted. A 2:1 or 3:1 overflow ratio is generally recommended, meaning the diverter should be capable of handling at least twice the volume of water expected from the roof. This ensures that excess water is safely diverted away from the home.

Installation Techniques

To ensure effective water diversion, consider installing a first flush device in conjunction with the diverter. This device allows the initial flow of roof water to be diverted, taking any debris and contaminants with it, while allowing clean water to flow into the storage tank. A 10-15% first flush ratio is recommended, allowing 10-15% of the roof catchment volume to be diverted before clean water is allowed to enter the tank. This technique helps to prevent sediment and contaminants from entering the storage tank.

Diverter Placement and Maintenance

When installing a diverter, it’s essential to place it in an area where it can effectively manage water flow without causing further erosion or damage to surrounding property. Regular maintenance is also crucial to ensure the diverter remains functional. Check the diverter regularly for blockages or damage, and clean or replace it as needed. Consider installing a visual inspection point to allow for easy monitoring of the diverter’s operation.