RO water is not easy or cheap, but I know of several places that use RO water for their primary source. With increasing population and pollutants in our water, RO maybe the way we all get clean water in the future. That being said, once you have a tank full of nice clean RO water, a CSV controlled pump system can deliver it at a constant pressure to your house or to an entire city. Using a CSV with a very small pressure tank is the best way to deliver RO water, because it keeps the water from sitting in a big pressure tank or water tower getting contaminated again before it gets to your faucet.
A CSV controlled pump system also works great to supply raw water TO the RO system itself.
