SMaguire Posted September 22, 2023 Report Share Posted September 22, 2023 At our Hotel we have a 500 gallon hot tub. Lately, we've been struggling to balance pH and alkalinity levels. If the pH creeps up and needs to be lowered, the alkalinity goes down with it. If the alkalinity needs to be raised, the pH goes with it. Any advice with how find a happy medium? It's an outdoor tub, and we use bromine as the sanitizer. Quote Link to comment Share on other sites More sharing options...
waterbear Posted September 22, 2023 Report Share Posted September 22, 2023 You would have found your answer in the pinned topics in this section of the forum. Start by reading these two the first one will explain the yo yo effect you are seeing and how to aviod it): https://www.poolspaforum.com/forum/index.php?/topic/28846-lowering-total-alkalinity-howto/ https://www.poolspaforum.com/forum/index.php?/topic/52522-some-truths-about-ph-and-ta/ You might also find this post useful: https://www.poolspaforum.com/forum/index.php?/topic/53410-how-to-use-bromine-3-step-method/ Quote Link to comment Share on other sites More sharing options...
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