i have used rain water for years, the only problem with it is if you let it sit outside for long you get all types of nasty stuff in it. Little bugs, and green growth on the sides of the container.
I just started picking some of my buds, and was told that the smoke tastes bad. Any tips on drying my buds? I also hear that you should flush before harvest. I am growing in soil, and want to know how long before harvest should I start to flush? Anyone?