Contech's Runoff Reduction Calculator™ allows you to input supply and demand criteria easily determine the benefits of a rainwater harvesting system.
With the Runoff Reduction Calculator, you can calculate:
- Runoff reduction and stormwater volume retained on-site
- Water saving and reduction of demand on potable supplies
- Optimal cistern size and cistern depth
- Financial savings based on reduced utility fees
- Information to support LEED credits
The tool includes local rainfall data and provides a detailed report including projected performance calculations that can be used for client meetings and stormwater permit approval. Click here to see a sample report.