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hooray!!! i just figured out how to use the pool calculator, now i just need to keep at these pool problems. i tend to get nervous about what to do so i do nothing. My son wants to swim so i need to keep trying. This is definately the best site for answers.

thanks for responding so quickly. i just started using the 6 way tester from wal mart. the active ingredient in the chlorine is calcium hypochlorite at 47.6 %. i bought bleach but can not figure out how to use pool calculator to know how much to put in. should i buy ph minus or is there an...