I grow indoors (house) under lights. I've moved most of my potted orchids to SH. I still have several mounted ones and grow catasetum in moss. So a mixed bag.
My house has two "master" bedrooms and I've given the one with attached bathroom over to my orchids. I water by taking my trays of plants into the shower -- I can fit four trays -- and using the hand shower to water. This works great. I also fill a large pitcher and use that in some cases as well. I'm just using regular city water.
I have about 150 orchids and a couple trays of carnivorous plants, so I need quite a bit of water on days when everybody gets watered.
I want to start using RO water for my orchids, but can't figure out what I should get or how to install it. Most of the time that bathroom is only used for the orchids, but I would like to keep the option open to use it as a guest shower. I don't care if the RO gets used for a shower, but my guests would care if there was no hot water!
I see something like the growers system on First Rays
Growers RO System › First Rays LLC, and that seems like a good start. But I'm not sure how I would need to hook it up to connect the shower, sink, but still allow hot (not RO) water for showers.
And I'd need some kind of tank to store it. I see "home RO systems" often come with a 3.2 gallon tank, but that is nowhere near enough for what I would need. And the grower system doesn't come with a tanks, so what am I supposed to do there.
One thing in my favor is that the garage is behind the wall with all the water. So filter and tank could go in the garage with minimal plumbing. I wouldn't mind if I had switch from RO to guest use by changing a value in the garage or something either.
I'm sure I'll need some professional plumber on this, and permits will be involved, but I wanted to try and get my plan/desire worked up first.