Water Storage Tanks for Rainwater

Which water storage tanks are ideal for collecting rainwater? There are different kinds of water storage tanks specifically for rainwater harvesting. It is a good idea to understand the disadvantages and advantages of the different types of rainwater collection tanks.

The most popular tanks that are used for collecting rainwater are Polyethylene rain water storge tanks. These tanks are used most often due to their advantages. They can be used below ground as well as above ground. The polyethylene water storage tank is less expensive than some of the other varieties. They are also UV resistant, light weight and easy to carry.

Fiberglass storage tanks are another popular rainwater tank. Their biggest asset is they are rust resistant and they resist chemical corrosion. The fiberglass tank also has the capability of tolerating extreme weather conditions. For these reasons the fiberglass rainwater tanks have become the most popular even though they cost more money.

Metal rainwater tanks are another type of storage tank available and they are usually made from copper, stainless, or steel rain water tanks that are coated with a color polymer. These tanks usually last long and are generally rust proof; their biggest advantage is withstanding extreme temperatures. Another type of tank is the concrete water storage tank but it has two big disadvantages. One disadvantage is the fact they will usually crack over time, but you will need to drain the tank each time it needs to be repaired. The second disadvantage is it attracts algae where the sunlight is present.

If your home does not already have rain gutters installed this would be a good time to do so. You will also need a downspout diverter leading to your rainwater harvesting storage tank. Before the water pours into your storage tank or rain barrel you will want to have some type of debris screen that will filter out pine needles, leaves, and other debris that comes off your roof. If you do not have this screen all the debris will collect at the bottom of the barrel and clog your outflow. You can use a wire mesh screen attached at the end of the downspout or mount it to the water storage tank. You also need to have a well-fit lid to protect your children and neighborhood children, and to prevent mosquitoes from breeding in your water.

You can install a standard spigot or a small length of hose near the bottom of the water tank with an on/off valve attached and then let gravity do its job. You can also add a longer hose in order to reach your garden areas or use the spigot to fill up your watering can. If you have a large rainwater harvesting storage tanks and your garden is quite a distance away from the tank you may want to invest in a small pump.

In many areas of the world harvesting rainwater is a large part of the water needs for both the garden and house. If you only get about 10 inches of rain during your rainy season, a roof that is a little over 1300 square feet, could give you over 8100 gallons of rain water. That is quite a bit of free water whether you are in a drought or not.


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Published on March 30, 2010 at 03:27 AM | Comments (0)

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