pH is the measure of how acid/alkaline the pool water is. If pH is too low, the water can be corrosive to pool equipment. If pH is too high, then the chlorine becomes much less effective for sanitization.

Baking soda (sodium bicarbonate) can be used to raise the total alkalinity without significantly changing the pH.

Alkalinity is often overlooked by pool owners, although keeping a value of 80-120ppm will stop your PH from fluctuating, thus lessening the amount of chemicals used in the pool. Having a high “TA” which is prevalent in a hard water area such as Kent causes scale to form which can severely damage your pool heater, especially if it is electric or gas.

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