Eco-Living Magazine

A Homemade Rainwater Harvesting System

Posted on the 22 March 2011 by Lisacollins @LisaCollinstt
A homemade rainwater harvesting system
As it's World Water Day, following on from my last post... this post is all about fitting a homemade rainwater harvesting system. I recommend using a blue barrel with a clamp on lid as a storage tank as the clamp will come in handy to fit the water filters. (but you can use any tank you like, appropriate to the level of rainfall you are expecting to store). Note that storing water for a long time may give you problems due to the attraction of bugs and bacteria (particularly for hotter countries). You may wish to dose your water with chemicals to avoid this. See the following image, click and zoom for details.
A homemade rainwater harvesting system
heres some pictures of that blue barrel I recommend, these are popular with canoeists:
A homemade rainwater harvesting system
A homemade rainwater harvesting system
Note that I say "adapted" fresh water inlet valve, this means you will have to adjust the float arm length or position until you are happy that it refills with normal water to the right minimum level. Something like THIS plus a ball float valve. You may have to extend the arm, use a brass or plastic rod for this, something that won't rust or decay underwater.
Power shower PUMP --you need something that will provide some pressure to deliver water towards the washing machine, particularly when the rainwater tank is nearly empty.
A homemade rainwater harvesting system
To collect rainwater from the roof, note that the water will swirl around on the inner surface of the rainwater down pipe from the roof. Therefore for capturing this, an inner edge that encourages water towards the opening mouth of your feeder tube (towards the storage tank) can increase the efficiency of collection. Also it is a good idea to have an overflow pipe flowing down at an angle from near the top of the storage tank, back to the rainwater down pipe. This stops excess water going over the top.
Water draining away from the washing machine could be collected for reuse -but I'll save that for a separate post.

You Might Also Like :

Back to Featured Articles on Logo Paperblog

These articles might interest you :

  • NBA Green Week 2011 Coming to a Close

    Green Week 2011 Coming Close

    While watching a few seconds of an NBA (National Basketball Association) game the other night, I noticed that one of the teams’ warm-up shirts said “NBA... Read more

    By  2ndgreenrevolution
  • Low Car Diet - A Little Road Bump

    Diet Little Road Bump

    So far, I'm loving Zipcar. I had to use it twice this week to go to my tutoring appointments. I logged on, reserved a Mazda 3, named "Merlin," at 28th and J. Read more

    By  Forevermelody
  • Want to Learn More About a Clothing Swap? Watch This Video!

    I attended a clothing swap last month and as luck would have, local news reporters were there filming an Earth Day segment. The news reporters showed women... Read more

    By  Livinggreenor
  • Is Shale Gas a Bridge to Clean Energy?

    Shale Bridge Clean Energy?

    As we have discussed in a number of articles, natural gas production in the U.S. is expanding rapidly. For the most part, this is due to the discovery of... Read more

    By  2ndgreenrevolution
  • Five Friday Facts: The Value of a Green Home

    Five Friday Facts: Value Green Home

    Although we have written about energy consumption in various sectors on previous Five Friday Facts, this week looks at residential figures. The following facts... Read more

    By  2ndgreenrevolution
  • A Dutch Cure For Pollution: Free Parking

    Dutch Cure Pollution: Free Parking

    The city of Amsterdam in the Netherlands is appealing to the psyche, and wallet, of many a motorized urban dweller - it is giving away a free parking spot to... Read more

    By  Gerard
  • How Many Cyclists Would It Take to Power a Home?

    Many Cyclists Would Take Power Home?

    I had this interesting bit of content sent to me recently and thought I would share it with everybody else.Some people may be able to figure out how much... Read more

    By  T_mackinnon