Spa Star pH Down

Keep your spa water balanced and comfortable with Spa Star pH Down. This fast-acting granular formula lowers high pH and total alkalinity levels in hot tub water, helping prevent scale formation, cloudy water, and skin or eye irritation.

Key Features & Benefits

• Lowers pH and alkalinity – Helps bring water chemistry back into the recommended range
• Improves water comfort – Reduces irritation caused by high pH levels
• Protects spa equipment – Helps prevent scale buildup on heaters and surfaces
• Fast-dissolving granular formula – Easy to apply with quick results
• Compatible with all sanitizer systems – Works with chlorine, bromine, ozone, and mineral systems

Active Ingredient

• Sodium Bisulfate

Hot Tub Instructions for Use

1. Test spa water to determine current pH and total alkalinity levels.
2. The recommended pH range for spas is 7.2–7.6.
3. With the circulation system running, add 1 tablespoon per 200 gallons of spa water to lower pH slightly.
4. Distribute product evenly across the water surface.
5. Allow water to circulate for at least 30 minutes.
6. Retest water and repeat as needed until proper balance is achieved.

Important: Always add pH Down in small amounts and retest between applications to avoid overcorrecting water balance.

Specifications

• Product Type: pH and alkalinity reducer
• Use: Hot tubs and spas
• Form: Granular
• Function: Lowers pH and total alkalinity

Spa Star pH Down is an essential part of routine spa maintenance, helping maintain balanced water chemistry for a safe, comfortable, and enjoyable soaking experience.