Join Date: Apr 2006
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apogee, no one said you can't do it. Power in has to exceed power out. So, how much power does it take what system to produce 10 gallons per day of potable water from sea water?
An off-the-shelf Katadyn PowerSurvivor can supposedly put out 10 gallons in 3 hours, costs about $4000, requires about 300WH of power to do that. A single 100W solar panel dedicated to that for the midday hours would do the job, presumably allowing a bit more water to be stowed for...oh, wait, wouldn't need to store water for a rainy day. Just the overcast ones. Unless I've got my numbers wrong again. :-)
I guess the question is more like, how handy do you have to be to build that kind of watermaker on a better budget?