Advertisement I am not at all disagreeing with you regarding hard water not being ideal. That being said, before I purchased a distilling system for home use, every orchid I own (and there are many of all the major groups) lived off of the hardest, most alkali desert well water you can imagine--I'm talking off the chart as far as my pond and pool test kit are concerned, well above PH 10! And wouldn't you know it, the little blighters did great! Bloomed like blooming idiots! Actually did better in my east-facing sonoran windowsill than they did in East Texas with lovely soft water and humid air. Go figure. Orchids can be a bit perverse. I'm sure there is quite a lot of buffering calcium carbonate or something along those lines in our well water, but I finally got tired of scraping and scrubbing white mineral stains off the sides of my terrariums and aquariums. Now they get 3/4 distilled, 1/4 well water. Still doing great. I have found, however, that it really depends upon where you live and how you have potted up your orchids as to what is likely to kill them. I've dried out a lot more orchids than I've ever drowned. For a long time I went with very rough chunk orchid medium and classic orchid pots with lots of holes. Too effective a drainage system! This does not do well in the South or Southwest if one tends to water once or twice a week, as I do. Now I use a much finer chunk medium and give them a really good drenching, even letting some water sit in the bottom for an hour before I drain it out. I've done much better with "containers within containers," such as you have, than I ever did with the classical Orchid pots, which allow all the moisture to drain out of the bottom or evaporate out of the sides. I love my traditional Orchid pots, but I've gone back and lined them all with water-resistant burlap. No losses since I limited the drainage somewhat.