OK..i have replyed to other posts about saving and storing water by bragging about the "land of 10,000 lakes" and how i had no need to keep any put away for some sort of survival situation..this is more home garden than survival but i thought i would post it anyway..
the city of Minneapolis gives a rebate on your water bill if you have a rain barrel or a rain garden..the garden is under the down spouts from the roof and the water go's into a grouping of plants that can sit in water untill the rain soaks in the soil..the city also helps pay for the plants..the barrel is in the back yard and during the dry spells is emptyed into out tomato patch..a couple goldfish in there keep the bugs and scum in check..
these three 15 gallon plastic barrels that i picked up for free--left by the roadside with a FREE sign--are used to store the rainwater for the houseplants during the winter..my wife has set aside about 20 one gallon milk and juice jugs and we keep those filled fron the big barrels.
i guess if for some odd reason we lost water i could use my camping filter to supply us drinking water in a pinch but i would expect that washing and cooking would be more like it..and having the water in the basement would save a trip to a local lake to fill them up..anyway..for what its worth,there you are..