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Rain
Barrels and Rain Barrel Cisterns
5 Reasons You
Should Install One
- Cisterns and Rain barrels reduce storm water runoff, prevent
flooding and help to reduce the peak discharge rate.
- Cisterns and Rain barrels save on water and sewer bills
- Cisterns and Rain barrels provide healthy, chemical-free water for
irrigation of lawns, gardens, and trees, car washing, or other non-potable uses
even during outdoor watering bans.
- Rain barrels a - Public water systems experience lower peak
water demand and less stress on local water supplies.
In many communities, 30 to 50 percent of the total water used is for
irrigation. Capturing rainwater for use in you landscaping makes efficient use
of a valuable resource and reduces demand on your local water supply.
A prolonged drought can cause the loss of many valuable landscaping plants
and prompt water rationing. Water conservation and development of alternative
water supplies is necessary to meet the growing demand for fresh water.
Cisterns and Rain barrels create an alternative water supply. They allow you
to capture, divert, and store rainwater for later use. They take up very little
room and so can be used in very dense urban areas.
Heavy rainfall can wash pathogens from contaminated soils, farms, and
streets into our drinking water supplies. Capturing rainwater can also help to
prevent flooding and erosion, turning storm water problems into water supply
assets by slowing runoff and allowing it to soak into the ground.
Reducing storm water runoff helps reduce contamination of surface water with
sediments, fertilizers, and pesticides. Water Pollution can cause problems at a
basic level by killing life that lives in water-based ecosystems.
The most common approach to roof runoff storage involves directing each
downspout to a 55-gallon rain barrel. A hose is attached to a faucet at the
bottom of the barrel and water is distributed by gravity pressure. Since rain
barrels rely on gravity flow, they should be placed near, and slightly higher
than, the point of use (whether a garden, flower bed, or lawn.) The barrels
should be high enough to easily attach a garden hose to the spigot.
A plastic or metal garbage can is easily converted to a rain barrel by
attaching a spigot and hose. To filter out leaves and debris, install a
removable screen at the opening. This also will help prevent mosquito and algae
growth. You can also hook two or more rain barrels together using through hull
barbed fittings available at any marine supply store. Seal the fitting with
silicone and run a section of garden hose from one barrel to the next.
A Cistern is a larger above or below ground water storage system. A more
sophisticated and effective approach is to route multiple downspouts to a
partially or fully buried cistern with an electric pump for distribution.
Cisterns may be quite large, and shared by multiple households. Stored rain
water can be used for lawn irrigation, vegetable and flower gardens,
houseplants, car washing, and washing windows.
How much rain you can catch:
Rain caught (gallons) = (inches of rain) x (0.6) x (portion of building
footprint in ft2)
For example, if your home's footprint is 1,400 ft2, and you want to know the
amount of water that comes from a ¼ inch of rainfall the equation would look
like this:
Rain caught (gallons) = (0.25) x (0. 6) x (1,400) = 210 gallons.
However, remember that storage is limited to the capacity of your system. If
your rain barrel holds 50 gallons, then 160 gallons will be lost.
To get your free whitepaper with tips on going green and sustainable living,
visit www.GoingGreenExplained.com.
Kathleen Cagiati has been practicing a green lifestyle and implementing
sustainable living strategies for the last 30 years and shares her simple
tips with you.
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