- Joined
- Dec 28, 2019
- Messages
- 54
- Reaction score
- 14
I have the Red Sea test kit for my Alkalinity. I thought I had a high alkalinity of around 15 dKh, so I left it and decided to test it later, where I found that my Alkalinity was reading at 12dKh. I decided to do a few tests in a row, thoroughly rinsing my bikes between each test. I got varied results from 11 dKh up to 15dKh. I have used the same test kit for each test and the same tank water. What is causing this? Can someone help me out?