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Post by SA Hunter on May 21, 2016 22:00:57 GMT 10
Driving along the Nullabor today, and came across an ingenious water collection method.
Farmer had laid out large black plastic tarps, about 40 x 70m, held down with old tyres. It was on a small lean, and a runoff into a large water tank. I could only assume the water is somehow gravity fed into the tank.
Talking to some locals, they say it not only collects rain water, but also condensation. I was impressed.
Once I get home and figure out what to do, I will down load some photos that I took.
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shinester
Senior Member
China's white trash
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Email: shiny@ausprep.org
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Post by shinester on May 21, 2016 22:43:42 GMT 10
Great stuff bud, like it! ============== Looking at supply cache's I had a location in mind for one, that whilst it had water access, I'm concerned that if things were actually that bad and I had to bug out to that location I might want to get deeper into the vegetation and stay away from water to avoid detection, to which I calculated the minimum sized tarp based on average rainfall that you would need as a baseline of rain collection. It's easy enough to work it out, divide the worst average monthly rainfall [should be charts online for almost everywhere in Oz]
Monthly Rainfall / 31 = rain/day 35mm / 31 = 1.1mm of rain per day. [average worst month]
To collect 5L on said month/day [average] we would need
√(5000000/daily rainfall) = each side of a square tarp √(5000000/1.1mm daily rain) = 2104mm each side, so a 2.1x2.1m tarp.
The worst ever month had 3.0mm of rain and you would need a tarp 6.5m x 6.5m, assuming you collected all of it.
So I hope that gives you some idea on areas required for the amount of water collected and you can work it out.
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