Rain and storage
How much falls, what you can catch, and what the law says. 5 items.
Rain and storageAre rain barrels legal in California?Yes. State law says you do not need a water right permit to use rainwater collected from a rooftop. Local building rules can still apply.
Rain and storageHow much rain Sonoma County getsSanta Rosa averages 31.5 inches a year. Petaluma gets 25.6. Healdsburg gets 42.8. Most of it falls from November to March.
Rain and storageWater storage tank size calculatorAnswer a few questions about your household, animals and garden. The calculator works out your daily use, then the tank size for the days you want to cover, and whether one tank or several fits.
Rain and storageHow big a water storage tank do you need?Multiply what you use in a day by the days you want to cover, then add any fire reserve. A family of four at the US average of 82 gallons each needs about 2,300 gallons for a week. Try your own numbers in the calculator.