New pool owner. Been built almost a year and plan on taking over maintenance. The pool turns green or brown every time we have a heavy rain. I've had the filters changed 3 times and cleaned three times. I'm actually about to clean again myself for the first time today. Pool cleaner came and put in chemicals so it's back to a normal color but not clean. Need to know what test kit to start with. I reviewed the site and was going to start with TF-100. I was also going to some baking soda and add that.






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