So i have a large pond on a farm. If anything happens id like to be able to go down, get some water and purify for use in home.
Have well water now, the spring feeds the pond. I mention the farm thing bc of fertilizers and other potential runoff. We dont drink our home water rn but use it for brushing teeth and ice cubes. Its been tested and isnt bad but has some turbidity so its not aesthetically appealing.
I use a countertop water distiller that also incorporated a final charcoal filtration. It makes really good water. Yes, it requires electricity, but since it is a small appliance, perhaps a small solar panel and converter could keep it running.
Otherwise, here are some other options:
~DIY filtration utilizing zeolite gravel, sterile sand, diatomaceous earth and charcoal.
~Solar water distiller made from hole in the ground, plastic wrap, etc.
~Sunlight, glass jar and Shungite stones
~Solar generated dehumidifyer that captures atmospheric air that is run through a filtration medium and into drinkable water