Our Rainwater system is pretty awesome, the first flush needs improvements, but otherwise we're very happy with it. The dry season for us is in mid-winter when it doesn't get above freezing for many months. Good thing there is always an old fashioned way of getting water:
Talk sense to a fool and he calls you foolish. -Euripides A foolish tiny ad:
Quit your workee-job and live, year round, for free-ish in Montana