I'm in NC, and I have an 11,000 gallon inground gunnite pool. It's been running over the winter, but I've been "neglecting" it the past month or so. I've always used a Taylor kit to check my water.

I recently went back to work after years as a stay at home mom. I work in an environmental laboratory, and have access to all sorts of fun equipment. Yesterday, I decided to bring a water sample to work for a pH check. My meter read 7.4, which seems a bit low given the fact that my pool's pH has a tendency to creep up if I don't stay on top of it.

I did a comparison using my Taylor kit, and that reading was 8.2. This is a huge difference.

I'm stumped! Any thoughts?