How to Make Your Own Cistern
The word cistern derives from the Latin word "cisterna," meaning an underground reservoir for water, but it is often used today to refer to a storage vessel that collects and stores rainwater. Although large underground systems are available, they can be costly and require professional installation. Making a simple cistern, or rain barrel, to collect rainwater to use for gardening or other household tasks can provide you with an effective solution on a smaller scale. Does this Spark an idea?
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Instructions
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Purchase a 55-gallon drum or rain barrel. You can often find 55-gallon plastic drums at feed stores or farms that use molasses in their feed, or at large restaurant chains for a minimal fee. If possible, choose a food-grade barrel, particularly if you intend to use rainwater to water vegetables.
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Place the barrel under the downspout from the gutters on your home to allow runoff to fill the barrel naturally. One thousand square feet of roof area collects 600 gallons of rainwater from 1 inch of rain, according to the Falls Church City Environment Web. One barrel fills quickly with summer rain and provides enough water for a small garden.
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Cover the barrel in dry, clear weather to prevent insects from infesting the water. Mosquitoes use standing water as a breeding ground. Remove the cover when rain is predicted so you can keep your barrel filled.
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Access the water with a bucket or sprinkling can from the top of the barrel. Some commercial barrels include a spout at the bottom of the barrel for ease of use, but this is not necessary. Dipping water from the top of the barrel, as needed, works well and eliminates the need for a spout.
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Use water from the barrel to water your garden or wash the car. Because it is unfiltered, rainwater is not recommended for cooking or drinking.
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Tips & Warnings
In rural areas, 55-gallon drums are a common commodity and can often be found for sale along the roadside or at yard sales.
Wash the barrel before using it for the first time to remove any residue.
Clean your gutters frequently to allow water to flow freely and to eliminate leaves and other residue in the rainwater.
Check with your state's regulations on recycling rainwater. In some areas, water barrels or cisterns are prohibited.
Do not use barrels that were used to store petroleum products, insecticides or other harmful chemicals as a rain barrel.
References
Resources
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