Ok, so several years ago I bought an API freshwater test kit. It was manufactured on 08/06. I tested my water when I moved into my house 3 years ago. From my memory it was somewhere around a Ph of 7.5. Yesterday I pulled out my pH kit because I am setting up my Malawi tank today and tested my pH to see if I needed to use crushed coral in the filter and my test kit showed a pH of 8.8. This doesn't seem right at all! From the tap the test kit showed a pH of 8.2. Is it possible my test kit is bad? Or is it possible my city's water has changed that much in 3 years?