A rain water collection system feeding into a mostly buried and tarped 1k litre IBC makes for a decent supply of water depending on where you live. It'll still need to be filtered but that's easy enough to set up with a decent pump, tubing and charcoal, ceramic and uv filters.
A rain water collection system feeding into a mostly buried and tarped 1k litre IBC makes for a decent supply of water depending on where you live. It'll still need to be filtered but that's easy enough to set up with a decent pump, tubing and charcoal, ceramic and uv filters.