

Maryland had talked about making our illegal to collect any rainwater, be it from your roof or anywhere else. I no longer live there so I never kept up with it.
ETA: looks like Maryland did not impose restrictions on rainwater collection after allon. And Montgomery County offers incentives.
In New Mexico both Albuquerque and Santa Fe offer incentives.
https://worldwaterreserve.com/is-it-illegal-to-collect-rainwater/






















I found a site that lists used tanks. https://ibctoterecycling.com//used-ibc-containers-for-sale/