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Thread: Bushcraft: Using swimming pool for evaporative cooling for underground house

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    Bushcraft: Using swimming pool for evaporative cooling for underground house

    I just found this awesome video on YouTube. Although it is titled that these young men are building a swimming pool around their underground house, I believe there is more functionality to the swimming pool than the title implies. I have worked with alternative, green building products before like adobe and straw-bale while also living 100% off the grid. The adobe bricks have the ability to breathe. I know that you can buy clay pots that naturally cool and filter drinking water. I am wondering if there is a similar cooling dynamic present with this house. It would certainly make sense in the hot tropics!!



    These young men have their own YouTube channel for other projects. I think I am going to do some watching tonight. It is called Primitive Survival Tool.

    https://www.youtube.com/channel/UC6v...3t3NTISG6iwUeA
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    Evaporative cooling is an interesting process. I remember before air conditioning, office buildings had these big evaporators on the roof.

    I did an experiment in evaporative cooling today, as a matter of fact. I'm a motorcyclist and it's getting really hot for riding. I found a few tricks online and tried them out. So I used a skull cap under my helmet, a polyester neck band and had a polyester running shirt under my mesh motorcycle jacket. I wet those three items down before putting them on. Then I put a Camelbak water carrier on my back filled with crushed ice and water. I also put ice cubes in the pockets off my mesh jacket. I rode for over an hour and it was like being in air conditioning! Interestingly, the ice cubes did not really provide much direct cooling. What they did was melt as I rode, keeping the running shirt wet to extend the evaporative cooling on my torso. It is really amazing that just plain water evaporating can produce so much cooling.
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    Bandannas dipped in a stream and worn loosely around the neck as they dry are another evaporative cooling trick. It's also how bota bags keep drinking water a little cooler. Those canteens with wool or felt stuck in them... same idea.

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    I solved the need for a cooling vest, I sold the bike. To be honest, at the behest of my wife.
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    Nice idea for flatlands and I could see it working very well, in the hills of Kentucky where my grandparents lived my grandmothers root cellar was dug into the side of a hill. The only thing above ground was the roof and door and it stayed about 60 degrees year-round, it was a nice escape from the summer time heat.
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    Although the dwelling in the video looks primitive to our USA standards, if the SHTF in the USA, I doubt there are really many people that would be able to build something like that for themselves, either the know-how or physical capability.

    I watched how they built the house and fired the mud roof to harden it, in a different video. Very interesting. It added a few new skills/ideas to my adobe building knowledge base.
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    Quote Originally Posted by jmf552 View Post
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    Evaporative cooling is an interesting process. I remember before air conditioning, office buildings had these big evaporators on the roof.

    I did an experiment in evaporative cooling today, as a matter of fact. I'm a motorcyclist and it's getting really hot for riding. I found a few tricks online and tried them out. So I used a skull cap under my helmet, a polyester neck band and had a polyester running shirt under my mesh motorcycle jacket. I wet those three items down before putting them on. Then I put a Camelbak water carrier on my back filled with crushed ice and water. I also put ice cubes in the pockets off my mesh jacket. I rode for over an hour and it was like being in air conditioning! Interestingly, the ice cubes did not really provide much direct cooling. What they did was melt as I rode, keeping the running shirt wet to extend the evaporative cooling on my torso. It is really amazing that just plain water evaporating can produce so much cooling.
    You must want to ride really bad to go to that much trouble.

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    When we lived on Reese AFB, in Lubbock, Texas, in the 70's the Base housing used evaporated cooling for AC. We called them "swamp coolers". They worked great because the air was so hot and dry.

    I don't know how well it would work in a humid climate like Alabama or Florida, maybe it does?

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    I lived outside of Albuquerque for 15 years and most buildings with the exception of large office buildings use swamp coolers. Works like a charm.

    For those of you whose electric bills skyrocket during the summer due to using A/C, mine actually came down in the summer. It's nothing but a fan, a water pump and a little bump in the water bill. Very efficient.
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    Swamp coolers do not work well at all in the humid Southeast. All it does is add more humidity to already humid air.

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    Quote Originally Posted by Fallsrider View Post
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    You must want to ride really bad to go to that much trouble.
    Prepping to ride is a pain in the rear even in the best of weather. I am an AGAT rider, meaning "All Gear, All the Time." I wear all the safety gear no matter what the weather. As the saying goes, "I dress for the slide, not for the ride." But it's worth it.

    I rode bikes in my teens and then didn't ride for decades. I got back into it two years ago, in my 60's, but I did it right. I got the right gear and the right training. I love it. When I'm out on the bike, I'm no particular age. I'm just a guy on a bike cutting through the air, leaning into the curves. There's nothing like it for me. I call it "two wheel therapy."
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    We used swamp coolers going up and although it cooled the house I hated cleaning the thing and what it did to chips and bread. Made everything stale
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    I'd want a couple mosquito fish in the moat.
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    Quote Originally Posted by Stumpkiller View Post
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    I'd want a couple mosquito fish in the moat.
    Yes, you see the potential here. I think there is more than is in the title. Evaporative cooled underground house, "swimming pool"? I say moat. I thought about putting game fish in there too. It would have to be set up like a fish tank, with other live things to eat the algae.

    You could not really put snakes or crocks in there for protection, because they could come into the house. These guys don't seem to be doing "home security" videos, though.
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    Quote Originally Posted by jeanlouise View Post
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    When we lived on Reese AFB, in Lubbock, Texas, in the 70's the Base housing used evaporated cooling for AC. We called them "swamp coolers". They worked great because the air was so hot and dry.

    I don't know how well it would work in a humid climate like Alabama or Florida, maybe it does?
    They don't work very well in Georgia. We had a slick salesman convince our dealership owner to purchase a couple of them for the shop. There was no difference with or without them. 98*F temp and 90% humidity just sucks any way you look at it. Like Fallsrider said, it just added more humidity to the already saturated air.

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