Is Regular Testing Of Collected Rainwater Mandatory After Using A Diverter?

Choosing the Right Diverter

When selecting a diverter, look for one that can handle a sufficient flow rate and is designed for your specific roof size and material. A good diverter should be able to handle 1-2 gallons per minute (GPM) and have a first flush capability to remove debris and contaminants from the roof surface. For example, the first flush can be achieved using a 10:1 ratio, where 10 gallons of water are collected before the first gallon of water is diverted to storage. This ensures that the initial water flow is clean and free from contaminants.

Importance of Regular Testing

Regular testing of your collected rainwater is crucial to ensure its quality and safety for consumption. This testing can be done using a pH meter, turbidity meter, and/or a water testing kit. For pH testing, aim for a pH range of 6.5-8.5; for turbidity, aim for a level below 1 NTU (nephelometric turbidity units). Additionally, test the water for bacteria and other microorganisms, such as E. coli and total coliforms. As a general rule, test your rainwater at least once a month during the collection period and after any maintenance or repairs to the diverter or storage system.