But you did not have a test kit, so you were not likely "shocking" correctly.
I agree with what Jason says. I spent $300 in less than a week at the pool store trying to clear my pool. I stumbled upon TFP and I couldn't be happier! I followed everything exactly as I was instructed to do and the result is my sparkly crystal clear pool in in Avatar pic. My husband was not happy when I bought a test kit and stocked up on bleach at first. Then he saw the results paid off and thinks it is the best thing I ever did. Trust me if you follow proper SLAM procedures you can do this!