The Greenman

In 1989, I moved to the United States from Cordoba, Argentina. I had what you might call a “normal” childhood. Video games, skateboarding and way too much TV. The catalyst to align my life in a more sustainable way came around 2006 from watching Al Gore’s ‘An Inconvenient Truth.’ I remember that night vividly. After a Sunday yoga class I found out they were showing this film and decided to stay. Boy, did it awaken my awareness. I left expecting the sky to fall before I even made it home.

Not too long after that I started gardening and learning about permaculture, natural building, greywater and related subjects. This blog is the chronicle of my path to help create a more sustainable world, one day at a time.


  1. Very good stuff! I am your wife’s sister’s Mother in Law!!!! LOL-that’s a mouth full! Keep posting. I’m saving you to my favorites.

  2. Your blog has such a nice look, with so much great information. I’m glad I found it through facebook. I can tell you are passionate about your projects. Keep up the great work!

  3. Hey Sergio,

    Your site has a nice clean look. See ya around the ‘hood. (lol)



  4. I would like to correspond with you to learn more details about the Rainwater Harvesting With IBC Tanks project, as I am considering building one for my home.

  5. Hey Sergio,

    Just found your blog doing some research on rainwater catchment into IBC totes. I’ve got a barn with a large roof that I’ve added gutters to. I’ve got a first flush and have the water makings its way to a single tote. I’m looking to daisy chain my remaining totes the way you did in your post, but didn’t quite understand how they all link up. Can you explain further or point me to a diagram that explains the connections? Thanks!

    1. Hi Jason,
      I would not recommend connecting them the way my friend and I did. That was his call and I thought it was over engineered. Depending on the amount of water you expect coming in, you may be able to interconnect the totes from their spout. They generally use camlock type fittings. Though the diameter of the pipes will end up being 2″, so if you expect a large amount of water coming in, it will overwhelm them and you will loose water through the overflow. Best thing to do is get a tank sized for the amount of water expected. But if you happen to have a bunch of IBC totes, you could always try interconnecting them through the top, but that will require some creative adapters… Hope it turns out great!

  6. Hi Sergio,

    I’m sure you’re busy, so I’ll be brief. I’m reaching out to you today to see if you’re interested in receiving a new and timely article for publication on your website, thegreenmanproject.com?

    The piece will reference one of our clients, but we work hard to make the content valuable and relevant to your audience. We want it to be worthwhile for you as well, which is why we’re willing to pay you $100 for your time and effort. Payment is made through PayPal.

    Can we send you a draft, Sergio? Please don’t hesitate to contact me if you have any questions. We want this process to be a win-win!

    Hope to hear from you soon,

    Samantha Kelly
    Outreach Executive
    [email protected]

  7. To who it may concern

    My name is Sam Milani
    I am the manufacturer of the Greyflow range of system.
    I am travelling through the central and northern coast of California next week and would like the opportunity to meet with technical members of your team.
    Feel free to contact me by email and send me a phone number I could contact you on ( I do not have a local phone number)


    Sam Milani
    Advanced Waste Water Systems pty Ltd
    POBox 561
    Floreat, WA 6014
    Tel: +61405459533

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