If your spa’s pH keeps swinging up and down no matter how much you adjust it, low total alkalinity is usually the culprit. Think of total alkalinity as the anchor that keeps your pH steady — without it, your water chemistry is constantly on the move. SpaGuard Total Alkalinity Increaser brings things back into balance quickly, so your other chemicals can actually do their job. Just a tablespoon per 100 gallons and you’re on your way to stable, comfortable water.

•   Stops frustrating pH fluctuations at the source
•   Protects your spa surfaces and equipment from corrosion
•   Easy to dose — 1 tbsp. per 100 gallons raises TA by 25 ppm
•   A must-have for any complete water care routine