Ha Ha! Did you get all that Ali? I love it when deeply scientific orchid culture debates flare up! I just wish I could understand it better--I always feel like I have stumbled into a debate luncheon at MIT sponsored by the Electromagnetic Interactions Group and they have asked me to transcribe meeting minutes into ancient sanskrit. (Of course, by that I, in no way, mean to imply that Geoff and Amey are being nerdy.)
It does make me wonder why I am so drawn to hobbies that make me feel stupid. But I suppose that is a matter for my psychoanalyst.
I have not put a lot of effort into testing or understanding my tap water, mostly because my house had a Reverse Osmosis system installed for drinking water, so I use that for my orchids. It takes a while to get enough water for my expanding collection and I occasionally suffer guilt over the gallons of water that go down the drain in the RO process. But it seems to be working. My brother-in-law recently picked up a new RO system from a pawn shop. My sister is excited because I have been dragging her down with me into orchid addiction and their water is very hard.
This house also has a rainwater cistern that collects from the rain gutters surrounding the entire roof. Unfortunately, the system for getting the water out is cumbersome and unwieldly. If my collection grows much larger, I will have to figure out an easier way to use it.