Bullhog
Well-Known Member
- Joined
- Aug 2, 2019
- Messages
- 62
- Reaction score
- 6
Does anyone have any experience with a reverse osmosis filter raising water PH? I have RO drinking water at home, I don't brew with it yet but was considering it. I just checked the PH and its going in at 9.6 (9.6 is normal for our city water in Austin TX) and leaving at 10.1. I changed the RO filter and same thing. What on earth is going on? I'm a using a calibrated meter, and verifying that the city water is 9.6 gives me some confidence that its not a meter issue.