I collect all the rain water that I can but I have also used my well water. Could be some of my problem, I don't know but my garden and all my house plants do well on it I think, no pun intended
I put it in plastic gal jugs but several years ago my neighbor gave me some of his plastic cat litter jugs and they hold allot more water and work fantastic. I also bought a big rain barrel last year best thing I ever did. It does have to be empty by winter however. I did use it last year for some of my outside plants but this year I think I will save it all for my orchids.
Now don't yell at me but I use the same water to water all my orchids, I know, I know that could spread disease. Is that the only reason you are not to do this. If I don't I would never have enough water. It doesn't rain that much in Wyoming you know.
How expensive is it to get a r/o water filter?