Well, I learned something then. I can imagine this helps with your consistency. Question. Have you ever comparison experimented with tap vs your treated water? Were the results detectable in your finished beer?
Your question wasn't directed to me, but I have specific experience with this as well. My son used to brew using just his tap water (he's in Birmingham, AL). Beer was ok. Nothing special. At my urging he started using RO water. Wow! Huge improvement.
I had the same experience when I started. I'd followed the bad advice new brewers sometimes find when searching for information, i.e., "If your water tastes good you can brew good beer with it." Well, maybe, if your water is appropriate to the style *and* you take care of chlorine and chloramines. Switched from using my tap water to RO water and the beer took a leap forward.
IMO, the two places new brewers can make the greatest improvements in their beers are fermentation temperature control, and ensuring the water is appropriate for what they're trying to do. In my son's case, he was doing extract brews at the time, and even with that, the water mattered.
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I see you live in mid-North Carolina. Your water might be ok. Years ago I lived in Greenville NC and our water was excellent--very soft. We didn't even need a water softener. Asheville NC became a beer capitol because of the water. Don't know about your place but it's possible it's just fine for most styles, with some adjustment. Or not. Have to find out.
An RO system will save money in the long run if A) you brew enough, B) buying RO water costs enough, and C) you have to drive significant distance to get it. In my case, I was paying over $5 each time I bought RO water from Wal-Mart. My RO setup cost me somewhere around $150, so every time I use it, I save $5. Took 30 brews to recover the cost, and now it's all gravy. At some point I'll have to replace the filter, but it's been going more than 3 years.
Further, I ended up using that RO water in my Keurig coffee maker (no scale that needs to be cleaned), and I always have it right there, ready to go, no trips to the store, nothing like that.
If one has the spare cash to get one, and the space to install/store it, it's a worthwhile brewing investment, IMO.