I have had a Big Berkey water filter for years, and love it. It will filter down to 0.2 microns, which will even stop a virus body. Given how contaminated the water supply can be, that is a very useful thing.

I have a pair of 50-gallon drums for water. I got them at a local Pepsi bottling plant for $15 each. They had Mountain Dew syrup in them. Rinsed twice, washed out with baking soda and then bleach. That give me 100 gallons of water. Drop a cup of bleach in them when filled to kill the nasties.

This thing is awesome:

https://www.amazon.com/Hydroller-Car...ter+jug+wheels

I can use it with a siphon to move water between barrels to inside the house. Combine it with this:

https://www.amazon.com/Wealers-Porta...r+shower&psc=1

You can heat that in the sun, and carry it inside the house for a shower.

I use this: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

To charge this: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Which runs this: https://madeby.google.com/phone/