Raises pH in spa and hot tub water quickly and effectively. This granular sodium carbonate formula brings low pH water back into the ideal 7.2-7.6 range for comfortable soaking and proper sanitizer performance.

Key Features

• Sodium carbonate formula raises pH efficiently in spa water
• Granular form dissolves quickly for fast pH correction
• 2.49 lb container with detailed dosage chart on label

Start with small doses — add 1/2 oz per 400 gallons when pH is around 7.3. Test and adjust in increments to avoid overshooting your target range.