flowerbug
Sustainability Master
Wow.Nice job on your prepping! 2 valves and fittings for the other tank sounds like a good idea. Do you have a water bill or a well?
a well is a water bill too, just paid in larger chunks at a time. not counting electricity bill (if you're on the grid but that would then be a whole other chunk too). no escaping the fact that there really isn't such a thing as a free lunch.
rains are very much welcome and perhaps the closest to a free lunch a garden might ever have (there's some nutrients in rain water...).