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How do I use the water of my barrel?

Green Light New Orleans financial benefit

Calculation of financial benefits:

Water Bill

1000 gallons of water = $ 7.41

1000 gallons sewerage fee = $ 6.50

TAX: 2.5%

50 gallon rain barrel: $ 0.71 per barrel

$ .01425 per Gallon


How much water do I collect?
The formula below let's you calculate the storm water run off from our roof in the first 1.25 inch of rain fall.
Volume of water in cubic feet = Area of rainfall in square feet x rainfall in inches x 1/12 inches to feet conversion x 7.48052 cubic feet to gallon conversion


For example:
1300 sqft roof
1.25 inches of rain

1300 x 1.25 x 1/12 x 7.48052 = 1012 Gallons


How much water ends up in my rain barrel?
If you have four downspouts at your house each downspout gets about 250 gallons. Our diverter collects roughly 80% of the water. Which means that you barrel will fill up pretty quick. We recommend at least 2 barrels per home. Our impact calculation gives you more details about your yearly savings under the assumption you use the rain barrel frequently.

How to read your water meter and what you pay for your water? released a graat article with valuable information.