You could be getting a rise in PH from the system itself rinsing out. All new stuff has to be cleaned just like reuse items. With the PH down, are you using liquid or dry?? I started with the liquid but started saying the same thing about cost. I changed over to the dry and it is allot more cost effective but takes a lil bit to get used to, concentrated shit it is.

Proday: You know that everyone should share so if you didnt bring enough for everyone then ................................