Brand new member to the forum.. We recently put in a rainwater collection system at our home, 2 tanks totaling 25,000 gallons. Our annual collection is anticipated to be around 50,000 gallons and our projected usage is around 60 thousand gallons. The area where we live has about 85 homes, on a common well water system. For backup purposes we remain tied to the well, using a backflow preventor valve to prevent contamination. Today the water board informed us that our backflow valve does not meet code, and they want us to install a rpz valve at our expense, even though during our project construction we double checked with them that what we were installing was satisfactory. It appears our options going forward are to comply with their request, or disconnect from the well. The water board has always been difficult to deal with, and this would be a good time to sever ties with them. Our projected water usage shows that the amount of rainwater we can expect to collect will fall short of our needs. Our setup allows us to keep the rainwater system separate from the community well system. One option is to have well water trucked in and pumped into our tanks. The well water in the Texas hill country is quite hard, and after all the effort we put into our rainwater system my wife is reluctant to mix the well water with our rainwater. I would ideally like to keep them separate as well, but as a practical matter I think the best solution given the circumstances is to disconnect from the community well and truck in water as needed. The cost differential of remaining connected to the community well vs trucking in additional water are minimal. Looking for advice/opinions. Thanks in advance.