Rainwater Harvesting Calculator for USA
by RainSaucers Inc. on May 4th, 2015
Here at RainSaucers, we've become adept at calculating rainwater catchment potential for our customers. But even for us, it takes time looking up rainfall rates and calculating total catchment area- especially when more than one of our products is in use. There are a few rainwater collection estimators online but none of them incorporate location. So we developed our own Excel tool that does the job. It worked so well we decided to put it online (see below). We also decided to make a portion of it non-RainSaucers specific, so that as long as your know your catchment area, you can use it.
Water Storage Recommendations
If a standard 55-gallon rain barrel would be filled more than 1 time and you live in the Western United States you will want to add more water storage. In other places in the US, the above can be as high as 3 before you would consider adding more water storage in order to capture the overflow.
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