00:00 - Intro

02:01 - Recap of Henry's Law of differential pressures. Any gas dissolved in a liquid will equalize with that same gas above the liquid.

04:36 - If you exceed the pH ceiling, the atmosphere will literally push CO2 back into the water.

04:57 - Where does CO2 come from when adding acid? It converts bicarbonate into carbonic acid (dissolved CO2).

07:50 - We don't want bicarbonate ions to convert into carbonate ions (at 8.3 pH or higher) because carbonates are attracted to calcium ions, creating calcium carbonate.

12:12 - How can we stop the rise of pH? How can we suppress pH?

12:39 - Analogy of the beer: what can you do to stop the beer from going flat? Think of it that way. How can you stop (or slow) the loss of CO2?

16:36 - Three categories of ways to suppress pH: cover the pool, chemically suppress it (acid feeder, CO2 injector, trichlor chlorine), and have very low alkalinity or high CYA to lower the pH ceiling.

18:53 - Explanation of sense-and-dispense acid feeders, and the challenges with them (overfeeding acid).

23:36 - If you don't have any of those reasons listed, but your pH is still being suppressed, please contact us! Teach us so we can learn more about this topic.

26:25 - Conclusion. Thanks for listening!

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