Water on the Roof?

Discussion in 'Finding, Purifying, and Storing Water' started by tilburkj, Jun 30, 2016.

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  1. tilburkj

    tilburkj New Member

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    My grandfather is amazing. He saves his rainwater for plants and puts it through a strainer, and he's been doing this for years. However, I'm really curious about rainwater and the possibilities for purifying it enough for drinking. How would one begin the process? Could you use cheesecloth and then boil for 30 minutes (much like you would for a boil advisory)? What could I do to make it as safe as possible? Thanks!
    Keith H. likes this.
  2. crimsonghost747

    crimsonghost747 New Member

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    Rainwater itself, assuming you aren't living inside a smog cloud, is potable. :) So the only thing I'd worry about is how clean your collection system is.
    Even with a clean collection system you could boil the water to kill any bacteria, I'd say this is probably not necessary but if you have the time and the means to do it then it certainly won't hurt.

    Keep in mind that human beings have survived thousands of years by drinking water from natural sources. It's not like you will suddenly drop dead if you don't get it from a fancy plastic bottle. :)
  3. lonewolf

    lonewolf Moderator Staff Member

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    all water sources-including rainwater- should be classed as polluted because the chances are that it is.
    filter with a cloth to remove all the larger particles and put it through a filter system if you can, at the very least it should be boiled.
  4. Keith H.

    Keith H. Moderator Staff Member

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    I can't answer for anyone else living anywhere else, but we have no need to filter the rainwater we catch & store from the roof of our house. We do however live in a forest, & not in the city, city roof tops can be polluted from vehicle traffic fumes.
  5. joshposh

    joshposh Expert Member

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    In a city where it's polluted and smog filled the air, I would be worried about the water. If the dirt and filth of the city gutters don't contaminate the waters, it makes you wonder if there is already something in the water because of the smog.

    But where I'm from, the rain water is just fine. But if you have reservations about your current living situation or possible contamination, then you need to boil it for a safe piece of mind.
  6. CivilDefense

    CivilDefense Expert Member

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    It is a good idea, regardless of the source, to filter rainwater. Some may be potable without said, but considering the odds that it might contain harmful material, it is better to run it through a filtration device. The good news such systems can be had for very little investment. And considering water is absolutely essential for life, there is no reason to scrimp in this department.
  7. giovanniiiii

    giovanniiiii New Member

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    Before thinking about making a rainwater collecting system, one should always consider if his area is populated with cats. We have been living in the city for years now and some nights I hear cats running on the roofs, hinting that some of them stay there. My father once climbed the roof of my uncle's house to fix the signal antenna. He then told me that there are lots of cat excrements on the roof. Ever since I try to stay away from water falling from the roof if it is raining, since I see it as very unclean and dirty.
    Keith H. likes this.
    1. Keith H.
      Good point!
      Keith H., Jul 17, 2017
  8. TsuyoyRival

    TsuyoyRival New Member

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    I actually never thought about it and makes a lot of sense. Where I live there are a lot of cats, and the possibility of collecting water for plants has crossed my mind, but drinking it is certainly not a good idea (i thought). But let's say we're on an emergency status and the only way to gather water is from the rain, I would consider boiling it or even input a small amount of bleach.
  9. Scarlet

    Scarlet Member

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    Ever since I was a kid, it has been a practice to collect rain water when there is no water but not for drinking. I heard one time from the advice of our doctor from the television to our countrymen that our rain water can be boiled and be safely used as drinking water in case there is no available potable water.
  10. Corzhens

    Corzhens Master Survivalist

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    When we had our kitchen extended by 14 square meters, we planned on having a water tank for collecting rainwater. It will be fitted with a faucet that would run down the ground so it would be convenient. However, we ran out of budget so the water tank did not materialize. But the roof of the extended kitchen is concrete which can be made into our planned c0ncrete water tank.

    I don't recommend rain water for drinking because we don't know the impurities that it contains. Pollution is heavy even here in the suburbs. Maybe boiling is okay but still not recommendable.
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