Today we will learn a little about total alkalinity. There is not much to know about it really.
The total alkalinity should be held between about 80 – 120. When kept in this range it acts as a very effective buffer for the pH. See my post about pH for more on this subject. If the alkalinity falls too low then the pH will drift around wildly. If the level becomes too high, the pH will remain high as well. The water will cause scaling, it will look cloudy, and algae will be more likely to grow.
Here are a couple of tips regarding alkalinity and pH. To decrease alkalinity, pour muriatic acid into the water in a column. To decrease the pH, splash the acid over the surface. Adding sodium bicarbonate to the water will increase pH and alkalinity.

An Atlanta area native, Shawn began servicing pools in 1998 and has not stopped. Years of experience have provided Shawn with a wealth of knowledge and opinions about all types and brands of pool equipment.

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