Cascadian Farm Organic Goodness

Simple Tips for Harvesting Rain Water

You may live in a community where you are allowed to capture falling rain water from your rooftop for reuse. This type of irrigation known as rain water harvesting is a budget and Eco friendly way to reuse rain water to irrigate your gardens or flower beds or even to wash your car and flush your toilets. You can also purify the water and use it as a great source of drinking water.

Since the average U.S. household uses nearly 250 gallons of water per day, the benefits of harvesting rain water can really add up. A household with a 1,000 square foot roof can capture over 600 gallons of water for every 1 inch of rain. Depending on the annual precipitation in your region, this can equate to thousands of gallons of water each year.

Besides being the ultimate in water recycling, rain harvesting also reduces storm water run off which can pollute and contaminate our waterways once pesticides, lawn chemicals, oil, grease, bacteria and debris are washed down the storm drains. Rain harvesting is also a great solution for areas that are prone to drought and water rationing.

When choosing a rain barrel, you will want to consider the size of the area or the ways that you will be using the water. If you plan to use the rain water to simply water your small backyard garden or wash your car, a traditional and inexpensive 55 gallon rain barrel should suffice. They come in an assortment of styles and colors, so you should be able to find one that will look great in your backyard.

If you plan to use the rain water for all of your gray water needs or have a large garden, yard or farm area, you may want to consider a larger rain water collection tank or cistern. Rain barrels are easy to use and install within a few minutes with only minimal tools required. You can even make your own, any large container can be used as a rain barrel.

Do you harvest rain? Would you consider rain harvesting? Please leave your comments below.

Photo via aussiegall.


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12 Comments Add a Comment

Jane Ryan says:

I would definitely consider harvesting rain water. However, simply getting a barrel the right size is not enough information. Perhaps it should have a special spout to get the water out for filtering or using in a nonconsuming way. Will it need gravity feed? How would one keep it from stagnating?

6/8/2010 1:48:16 PM

Lisa says:

You explain why using a rain barrel is good but you really didnt give any tips other than if you have a small garden use a 55gal. you mention cisterns but dont give any links to where to find some. what height is optimal for best pressure? any pumps that can be used to increase pressure? i have 3 barrels we just made but am having issues with getting enough pressure to use the sprinkler to water the garden. i'm really disappointed in your "tips".

6/8/2010 2:55:23 PM

Angela says:

I agree with Lisa. Where are the tips?

6/8/2010 3:55:48 PM

Melinda says:

I would like a to harvest rain water, I have a question will rain water running off of my ruff which has regular shingles contaminate the water making it not being good for watering my garden? I also agree with everyone else where do I buy the tank how do I set it up to use it for gray water in my home? Thank you

6/8/2010 8:11:21 PM

Melissa says:

I don't consider a $160 rain barrel "inexpensive." I've seen them for much cheaper elsewhere, but still way above my budget. We buy cheap Home Depot 5 gallon buckets and move them around when the rain is pouring off our gutterless roof.

6/8/2010 9:28:54 PM

Grace says:

Your Ideas are great and useful. here is a sugestion to help us better...Would you Please post rain barrel pictures and a different ways to use them with each picture?

6/9/2010 3:53:26 AM

Monica Harry says:

I live in Central Florida, and my parents had two 50-gallon rain barrels that we used for YEARS. I'm talking 20 or more! I'm installing my own this year for my garden, and one thing my father taught me was to watch for mosquito larvae in any standing water. One way to combat them is to make sure you have tadpoles in your bucket! If Dad found tadpoles in one bucket, he'd transfer some of them to the other one, too. It works!

6/9/2010 7:37:53 AM

Monica Harry says:

I live in Central Florida, and my parents had two 50-gallon rain barrels that we used for YEARS. I'm talking 20 or more! I'm installing my own this year for my garden, and one thing my father taught me was to watch for mosquito larvae in any standing water. One way to combat them is to make sure you have tadpoles in your bucket! If Dad found tadpoles in one bucket, he'd transfer some of them to the other one, too. It works!

6/9/2010 7:38:30 AM

Mr Natural says:

How great is it to hear the call to reuse and recycle something so dear to us. We had a leak in our house from some work we were having done and we had to shut off the main water whenever we weren't actively using it. Everyone realized the convenience of today's plumbing and how inconvenient it was to not just be able to go to the tap and turn it on. Save your water!

6/9/2010 11:19:53 AM

Nora Stark says:

Our company specializes in product and design for rainwater harvesting systems. If you go to our website, you can see some good diagrams that show the best way to properly setup your system. You have all asked the most common questions. The short answer is rainwater is for the most part, a very "clean" source of water. To manage any organic matter, it is important to use a good rainfilter, either directly on the downspout or before your tank to pre-filter the rainwater before it goes into your barrel or tank. For larger tanks, it is recommended to use what's called a calmed inlet and a floating intake with a hose, pump, and electronic controller, to pull the best quality water out of the tank. If bacteria or other containments are a concern, we recommend a charcoal or UV system. Please NO Chlorine!! (it's not environmentally-frie ndly!) Stagnation is not usually a problem if your system is setup properly especially with the pre-filtering before storage. Hope this helps!

6/11/2010 7:19:35 PM

Ursula says:

I moved from the rainy northwest to hot dry texas. This area has created a deep honor and love of the rain I took for granted for so long. I really enjoy the ideas given to me in the comments centered around this article and will use them to make my garden grow.

7/19/2010 4:24:48 PM

***** says:

If, like me, you hate plastic with a passion and **** BPA and other leaching toxins found in plastic, an alternative to the plastic rain barrels commonly found/used is a galvanized tub. You can find these at farm supply shops like TSC. They are also prettier, in my opinion, and can be planted around to add to the landscape.

9/2/2010 7:42:08 AM