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Lowering Ph/Alkalinity
Ph/Alkalinity Down 3 Lb
Price $11.99

To lower alkalinity without lowering the pH level run the spa on high speed and add one ounce for every 10 ppm in a 500 gallon spa in just one area of the spa. When lowering alkalinity add as much at one time as necessary.  If the pH still needs to be lowered once the alkalinity is in range add only ½ ounce at a time throughout the surface of the water, then wait 30 minutes, test again and add accordingly, never adding more than 1/2 ounce each time.

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Ph/Alkalinity Up 2 Lb