I live in Winnipeg, Manitoba, Canada. 3 years ago, friends dropped off a half dead orchid (phal) saying they'd given up trying to get it to re-bloom, and didn't want to responsible for MURDERING it, so, here's the deal. I soaked it in water for a week, to re-hydrate it (read that on the web) and then, thinking I had nothing to lose, I left it in water, in a lovely glass container, and 2.5 years later, it's bloomed twice, is quite huge, and healthy. Since then, I bought 3 more supermarket phal's, and immediately transferred them to water because the blooms last for EVER!!!! However, periodically, there is some rot on the stems, and yet new growth elsewhere, even further along the stem where the rot is. I don't know how much of the plant is SUPPOSED to be immersed in water, and no, I'm using our tap water, which is quite drinkable, so not using distilled water. Would that make a difference, and I've not treated the rot, as it's pretty much slime. I've just been peeling the green slime off the stem, to the plant base and put it back. I'm a total novice here, so entirely LUCKY, but I've not found any magial answers on the few sights, other than what's on you Tube. Any suggestions would be appreciated.