I have been using rain water for my plants, I collect it in a rain barrel and then transfer it to a storage container in the garage, it seems to work well, the reason for this is that i live in an area with a high lime content in the water (very hard) and thought rain water would be better, is this ok ? also I have a dehumidifier in my room and i was wondering if the water collected in that is ok for using on the plants again seeing as that's where it's coming from. Thanks in advance. I am reading the guides and can't believe how much there is to learn. Cheers T. Thumb