- Joined
- May 8, 2017
- Messages
- 81
- Reaction score
- 22
Hi. My ro water is testing 2 amd the resin is about 40% discoloured in the chamber. I know 0 is optimal but I have read online some people go to 10 which I find hard to believe. At what reading do you change our filters? I am also getting a lot of cyno could this be causing it.
TY Mark
TY Mark