- Joined
- Nov 7, 2016
- Messages
- 20
- Reaction score
- 3
I just cleaned out and replaced my kalk solution in my avast k1. On the previous fill my ph started at 12.4 then went down to 11.5. I cleaned it out because when I first set it up the plug for the ph probe fell thru the hole and went into the bottom of the stirrer. Doh. Anyways, on the fresh new solution, the ph started at 11.7 and 3 days later it has decreased to 9.28. What is happening here?