Fast-acting powder formula: Quickly lowers pH and alkalinity for immediate water balance
Easy to use: Can be added directly to water or dissolved in water for convenience
Prevents scale buildup: Maintains proper pH to reduce cloudiness and surface damage
Enhances sanitizer efficiency: Helps keep sanitizers effective for cleaner water
Protects spa equipment: Maintains correct pH to extend equipment lifespan
Summarized by Shop
Master Clear PH Down – 3 lb. – Powder pH & Alkalinity decreaser
Master Clear PH Down is a powder that can be added directly to your spa’s water, or can be dissolved in water, to lower the pH & alkalinity levels in the spa. The primary component is sodium bisulfate. Ideal pH range is between 7.4 & 7.6, with a tolerance range