How do rain gardens & rain barrels reduce water pollution?

rain barrels and rain gardensEvery time it rains, stormwater runoff from developed areas creates problems. Our modern cities are engineered to funnel rainwater from the land as fast as possible into storm sewers were it then goes, untreated, into nearby creeks and streams.

This causes water pollution (from all the oil, salt, fertilizer, and grit the rain water picks up as it travels across impervious surfaces), stream bank erosion, flooding of urban areas and creeks, and reduces groundwater. Increasing urban sprawl also contributes to the problem because current stormwater systems often cannot handle the extra volume of water that each rainstorm requires.

The good news is that everyone can do something to minimize these problems. Rain barrels and rain gardens allow you to keep the water on your property so it never enters storm sewers.

Rain barrels can be attached to downspouts on your gutters to collect the rainwater. Later, you can attach your hose to the spigot at the bottom and use the water to water your lawn and garden or to refill outdoor fishponds.

So how can rain gardens help? Simply put, a rain garden is a garden planted with native perennials, built with a shallow depression in the bottom, and located in the path of stormwater runoff (from a gutter, parking lot, roof, yard, or any impervious surface) to catch and hold the rainwater. Ultimately, this just gives the water time to soak into the ground instead of into the storm sewers. The result is improved water quality, reduction of the quantity of water going into storm sewers, minimization of flooding concerns, recharge of the groundwater, and the reduction of stream bank erosion and the need for curbs, storm drains, and piping.
The roots of the native plants go extremely deep into the ground, as much as 18 feet for some grasses, which means they almost never need to be watered even during droughts. The gardens also increase vegetation in urban areas, helping to reduce the Heat Island effect, a phenomenon that causes urban areas to be up to 5°F warmer than rural settings.

Rain gardens are designed to hold water for 24-48 hours before it soaks into the ground, which means they are not a breeding ground for mosquitoes that need about 7 days to complete their reproductive cycle. Rain gardens can create exciting and beautiful additions to your property. Plant native plants and watch the humming birds, butterflies, and other native wildlife when they visit your garden for food. Consider adding berry bushes or nest boxes to create a wildlife habitat in your own yard.

Source: KyForward Abbrev. (By Kara Sayles)

Also see Rain Gardens Reduce Storm Water Runoff, Ease Strain on Sewer Systems and watch VIDEO: How to make a cheap rain barrel / rain water tank.

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We are authorised JoJo Tanks dealers in South Africa and dispatch orders directly from JoJo Tank depots to save on transport costs. Full range of JoJo Tanks products and JoJo water tanks for sale.  CONTACT US for a quote on the right JoJo water tank or other JoJo product for you.  Special discounts are available on multiple orders of chemical tanks and water tanks and to our commercial and government customers.


(15000 litre and 20000 litre JoJo vertical water tanks also available on order)

Live in the USA and need rainwater harvesting equipment?  Click HERE!

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