I agree.  All natural resources are on exponential decline as population increases.  In addition to an antiquated supply infrastruction to consumers, there is inadequate education about the dire importance of conservation (which should start as early as possible).  If the government is ever in need of revenue they should start taxing people for all the perfectly good gray water that they don't reuse.  Composting toilets, while needlessly unattractive yet tolerable, are productive and use zero water.  Cisterns can be used to collect water with municipal suppliers as a backup (lessons from energy buy-back are largely applicable to our present and future water issues).  There is so much that can be done on both the individual and collective level; and given the adequate education and timeframe for adjustment to a more evolved socio-environmental culture, taxation can become an effective means of enforcing responsible behavior at the level of interest for fair distribution of our natural (limited) wealth -- both as a nation and as denizens of the world.