Why Rain Barrels?
Provide your plants with water they will love!
Unlike treated water, which is "softened" with dissolved minerals, rain water is naturally soft. The water stored in your rain barrel is great for washing your car and watering indoor or outdoor plants. It also doesn’t contain chlorine or fluoride.
Save money and water!
Instead of water from the tap or faucet, you can use the water you've saved to keep your home landscape happy and growing. You'll also reduce your water bill!
Protect the Chesapeake Bay!
Water stored in your rain barrel is water that won't rush off into our streams. Instead, as you use the stored rain water around the home and garden, it will absorb slowly into the ground, replenishing groundwater supplies. By decreasing the volume of storm runoff, rain barrels also help moderate stream erosion and the resulting pollution that is impairing the Chesapeake Bay.
The City of Alexandria is dedicated to protect and enhance the natural environment. One of the ways is by providing outreach and education to citizens for practical solutions. In cooperation with other the Rain Barrel Program partners (other municipalities and organizations committed to conservation and the environment) the City periodically hosts “Build Your Own Rain Barrel” workshops. Sign up for "Environmental News" eNews to get the lowdown for the next workshop.
Want to make one at home? Find out how to make and install one yourself!!
Rain Barrel FAQs
What do the rain barrels look like and where do you get them?
The rain barrels offered in the rain barrels partners workshops are made from plastic barrels that used to hold pickles, peppers or onions. During the workshops, the barrels are re-purposed into rain barrels. New and other re-purposed barrels can be found at locations in the area.
How large are the rain barrels?
The rain barrels from the workshops hold approximately 50 gallons. They are approximately 23 inches wide. The height range from 41.25 inches to 43.75 inches tall.
Will I get mosquitoes in my rain barrel?
The rain barrels are capped with fiberglass screen that allows water in, but keeps mosquitoes from getting into the barrel to lay their eggs. However, if you are concerned about mosquitoes breeding in your rain barrel, you can add a whole or a half of a Mosquito Dunk to the water in your barrel to kill mosquito larvae. Mosquito Dunks can be purchased at most garden supply stores.
Is the water in the rain barrel safe to use in my vegetable garden?
There are differing opinions on this subject. Rain barrels that collect water from copper roofs or from roofs that have been treated with CCA (chromated copper arsenate) to prevent moss or algae growth should not be used on edible plants. If you have treated your roof with chemicals or installed zinc strips to prevent moss or algae growth, you should also not use the water in your rain barrel on your vegetable garden. Other considerations include the potential for air pollution in your area. Water flowing from your roof can contain deposited air pollutants. However, this water may end up in your vegetable garden anyway. No matter what you decide, make sure to wash all your garden produce thoroughly before you eat it!
Things to Consider
There are two main drivers to look at first when considering rain barrels.
The first thing you want to consider is whether or not your roof downspouts are connected to the storm drain system. Currently, City ordinance does not allow for disconnection of the downspouts if they were connected as part of the development. If however the downspouts are not connected (meaining they discharge onsite as part of overland flow), then they may be good candidates for rain barrels.
The rain barrels can be placed under the downspout by first cutting the downspou. Keep the bottom "elbow" and reconnect to the cut end. The new end should discharge into the top of the barrel and fill up during a rain event. If the barrel gets full, it should overflow through a hose connected at the top. The overflow should be situated so that water is directed away from the foundation. Or a diverter can be placed on the downspout so that when the barrel filled, the water would then be diverted back into the downspout and discharge at the "normal" location.
The other thing is the responsibility of emptying the rain barrels after a storm event so that they are ready to receive the next event. Either way, it's good to empty the barrel about every week (5-7 days). There are a couple approaches: The rain barrel has a spigot (aka hose bib) attached to the bottom. A soaker hose can be attached to this and the spigot opened to various degrees to allow slow infiltration into landscape areas for a less hands-on approach. You can also leave the spigot closed and fill a watering can. Installation height above ground level will determine the water pressure at the spigot (and hose). A pump (either hand or electrical - possibly solar) can be installed to increase the pressure and allow you to use the hose in a more traditional manner.
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