We have ordered a 33ft. 52" high AGP. I live in NE OK. It will be installed this spring as soon as the weather is warm enough. They included Pristine Blue in our package and gave it great reviews. I, however, after doing some research am not feeling very positive about it. They recommend it as well as adding chlorine to shock the pool every other week. Please advise me on this if you have had any experience or knowledgeon Pristine Blue or know someone who has. If I don't feel good about it I don't want to go with it but I am new to this whole thing and am trying to become informed.