Quote Originally Posted by KurtV
dog, Sounds like you're using a DPD test for chlorine which is difficult to get good results from with high levels of chlorine (over 5 ppm), which I'm pretty sure you have.
Sorry KurtV, you did ask about that. It's an OTO test. I think, just to be on the safe side, I'm gonna take a sample to the pool store tomorrow morning. Thanks so much for all your help. I'm sure I'll be back with plenty more questions.