Knowledge Weighs Nothing

Rain Harvesting: How To Store & Filter Rainwater

June 8, 2017

UPDATE: this post is a combination of a few smaller posts that were knocking around from the early days of K.W.N. As these posts contained excellent information on rainwater harvesting and filtering, I have compiled them here in one larger post.

dumpadayuse-rain-water-to-water-your-garden
I stumbled across this diagram a while back. Unfortunately, I was unable find the original source or any further details on materials and construction. However, all is not lost as the diagram pretty much shows you all you need to know to collect and store rainwater at home. Includes fixtures and fittings. It shouldn’t be too difficult to replicate this system using just the diagram.

How To Make A BioSand Homemade Water Filter To Filter Collected Rainwater

Bio-sand water filter

Most people who collect rainwater, do so for watering their garden and crops. The thing is, rainwater collected from the roof of your home etc is perfectly drinkable if it is first filtered, to take out any toxins and bacteria etc. You don’t need a high-tech expensive industrial water filter system to do this; you can easily make something known as a bio-sand filter, which can all but be made for free…

Below is some additional information from Wikipedia

Bio-sand filters remove pathogens and suspended solids through a combination of biological and physical processes that take place in the biolayer and within the sand column. BSFs have been shown to remove 5.00-64.00% of heavy metals and 90.00-99.99% of turbidity and contaminants such as bacteria, viruses, and protozoa.

If you are interested in setting up your own bio-sand water filter, to run your collected rainwater through, check out: How To Make A Bio-Sand Filter To Filter Collected Rainwater

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(Photo from: The Prepper Journal)

BioSand Filter Which Could Easily Be Adapted Into A Rainwater Barrel

Biosand water filter system

Above is a large homemade biosand water filter system from Instructables. If you head over to Instructables, there is a very in depth, step-by-step tutorial explaining how to build this DIY biosand filter, plus a load of information on why biosand filter are incredibly effective at filtering water. The best bit, is the whole tutorial can be saved/downloaded in a PDF document, making it easy to print out and refer to whilst.

(Image from: jimmypat)

Simple And Affordable Water Tote Rain Storage System

rain-water-tote
If you have the space and your local County allows it, I think everyone should install a simple rain collection system.  You would be amazed at how much water you can collect from the roof of your house or a shed/barn.  You are pretty much only limited by the space you have to store the collected water.  If you have lots of space, you could easily capture enough water for watering your garden and any fruit and vegetables you grow.

Harvested rainwater isn’t really great to drink, but if you are without your main water supply for whatever reason, it is feasible to use a survival/camping water filter such as this water filter to filter this water and make it safe for drinking.

If you’d like more information about building a rain water collection system, the folks over at Old World Garden Farms have built a great system and they have written an article about how it was put together and how it works.  Check it out below.

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For emergency drinking water storage, check out: WaterBOB WB-06-001 Emergency Drinking Water Storage it fits in your bathtub and holds 100 gallons of water.

(Photo from: Old World Garden Farms)

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If you are thinking about installing rain barrels to store rain water, just be aware that in some states this is illegal, sad but true. If you can have rain water barrels there are lots of things that you should and shouldn’t do. If you are storing water to drink, you need to do things differently than if you were storing the water purely to water the grass. I found a great article explaining the do’s and don’ts of building and installing your first rain barrel: The Do’s and Don’ts of Building Your First Rain Barrel

(Picture Credit: Rachel Tayse)

Filed Under: A.K.W.N, DIY, General Prepping, Self-Sufficiency, Water

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