I actually think that's the unit that a friend of mine has hooked up to his toilet...lol. His tank is always great as well. I just hear about people using RO/DI water for shrimp all the time and didn't know if I could get by without it.
Did it myself to respect the community's younger members and those who don't want to see profanity, but know the meaning of the phrase. Although, in this day and age not like it really matters that much, eh?
I don't know enough about shrimp to say...but I read some if not all are sensitive to water condition so perhaps it isn't a terrible idea if you keep or plan to keep them. I just know that unless you are very lucky, they are almost mandatory for SW tanks unless you have access to water from somewhere else.
I don't think my water is terrible but I've never had much luck with ghost shrimp (then again they're brackish, aren't they?). They generally live a couple months and then start to kill over. Maybe my catfish just gets to eat well, eh?
Who knows though. I'm hoping to have better luck with some actual freshwater shrimp in a safer environment.
