That's exactly right. RO water is more acidic than the incoming water. From what I was told it's not enough to cause any issues, but it's also why you aren't supposed to run ro water through any copper lines. The more acidic water will leech the copper from the lines and cause it to wear through from the inside out. Sure seems like if it's acidic enough to eat away copper, you shouldn't be drinking it!
The remineralizing filter only adds back minerals that were removed. It doesn't affect the pH at all. Now I will say I remember vaguely about whether you should be using ro water for baby formula or kids, but honestly it didn't concern me so I didn't really pay attention to it, so you may want to research that some more.
The remineralizing filter only adds back minerals that were removed. It doesn't affect the pH at all. Now I will say I remember vaguely about whether you should be using ro water for baby formula or kids, but honestly it didn't concern me so I didn't really pay attention to it, so you may want to research that some more.