Rain Barrels
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Rain barrels, cisterns and rainwater harvesting for gardens, homesteads and off-grid homes. A 1,000 square foot roof sheds about 600 gallons in an inch of rain. Rain barrels are legal in every U.S. state, but some states, such as Colorado, limit how much you can store, and a few regulate larger systems or drinking use, so check your state rules. Keep barrels covered and screened so mosquitoes can't breed, and don't drink untreated roof water. Many towns sell discounted barrels. Stores below are commercial.
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Links last checked Oct 17, 2026.
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| How to and health: EPA and CDC (start here) | ||||||||
 cdc.gov - CDC: collecting rainwater and your health |
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| cdc.gov (mosquitoes) - CDC: preventing mosquitoes (screen and cover barrels) |
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 epa.gov - EPA Soak Up the Rain: rain barrels, how to set one up |
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| epa.gov (WaterSense) - EPA WaterSense: save water outdoors |
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| State rainwater rules (check yours before you buy) | ||||||||
 ecology.wa.gov - Washington Department of Ecology: water rights and rainwater |
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 extension.colostate.edu - Colorado State Extension: Colorado rain barrel law (two barrels, 110 gallons) |
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 twdb.texas.gov - Texas Water Development Board: rainwater harvesting manual and rules |
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 waterboards.ca.gov - California State Water Resources Control Board |
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 worldpopulationreview.com - Rainwater collection rules by state (summary; confirm with your state) |
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| Rain barrels and kits (commercial) | ||||||||
 amazon.com - Amazon: rain barrels and diverters |
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 aquabarrel.com - Aqua Barrel: rain barrels (on the old page) |
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 gardeners.com - Gardener's Supply: rain barrels and garden gear |
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 greatamericanrainbarrel.com - The Great American Rain Barrel: recycled food-grade barrels (on the old page) |
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 homedepot.com - The Home Depot: rain barrels |
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 kentuckybarrels.com - Kentucky Barrels: whiskey and wine barrels for DIY rain barrels (on the old page) |
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 lowes.com - Lowe's: rain barrels |
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 rainwatersolutions.com - Rain Water Solutions: community rain barrel programs (on the old page) |
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| Cisterns, tanks and installers (commercial) | ||||||||
 bushmanusa.com - Bushman: rainwater harvesting tanks |
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 enduraplas.com - Enduraplas: water storage tanks |
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 norwesco.com - Norwesco: polyethylene water tanks |
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 rainwaterhog.com - Rainwater HOG: slim modular tanks (on the old page) |
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 watercache.com - Water Cache: rainwater systems and installation (Austin, Texas) (on the old page) |
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| Learn rainwater harvesting | ||||||||
 arcsainternational.org - ARCSA International: rainwater industry standards and accredited pros |
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 extension.oregonstate.edu - Oregon State University Extension: rain gardens and barrels |
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 harvestingrainwater.com - Brad Lancaster: Rainwater Harvesting for Drylands and Beyond |
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