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Rainwater Harvesting Tanks for Livestock and Barns
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A barn or shed roof, gutters, a storage tank and a trough make a simple water supply for pastures without a well, or a backup for the well you have. Texas A&M AgriLife Extension notes that most livestock producers use rainwater as a supplemental supply, though it can be the main source if the system is sized so demand does not outrun supply.
How Much Rain a Roof Collects
Each square foot of roof sheds about 0.6 gallon of water for every inch of rain. A 2,000 square foot barn roof collects about 1,200 gallons from a 1 inch rain.
Sizing Storage
Texas A&M AgriLife sizes storage from daily use and the longest dry spell you expect. In their example, 10 sheep drinking 4 gallons a day need 40 gallons daily; covering 90 days without rain takes 3,600 gallons of storage, and filling that from a 1 inch rain takes about 6,000 square feet of roof.
Use the AgriLife rainwater harvesting calculator to run the numbers for your herd, roof and local rainfall, then call us for the tank.
Choosing the Tank
- Vertical tanks from 25 to 20,000 gallons and water tanks from 300 to 10,000 gallons. Several tanks can be plumbed together.
- Black and green water tanks block sunlight to help prevent algae.
- Top inlet for the downspout, overflow, vent and a bottom outlet to the trough float. See fittings and options.
- Livestock needs by animal: see Livestock Water Tanks.
Tell us your herd size, flock size or acreage and we will help size the tank. Call Sales – 936-228-1520 Request a Quote
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