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> The water seems like the hard part. Are there any tricks for cheap, safe hydration for a family?

You already have the equipment for that. Your existing hot water heater stores enough drinking water for a month at least, probably more if you ration carefully.




we got the smaller 42 gallon one, and.. with two people and a pet... it might last a couple weeks tops, I'd think, if we rationed (~2-3 gallons per day?)


I don't think I've ever drunk two gallons in a day in my whole life. Sedentary survival needs in reasonable climates are maybe a third of that.


Go hiking in 35 degree weather on Mallorca, you'll easily exceed that.

But that's not really disaster-relevant, no.




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