Zodiac Spa Alkalinity Up helps increase total alkalinity and pH in spa water, supporting a balanced and comfortable spa environment. Maintaining the correct levels helps stabilise pH and supports effective water care.

Features & Benefits
• Increases total alkalinity and pH in spa water.
• Helps maintain stable water chemistry.
• Supports effective spa water maintenance.
• Easy-to-dissolve formula for convenient application.

Application & Dosage
• Dosage: 20g per 1,000L of spa water increases total alkalinity by approximately 10ppm.
• Ideal Total Alkalinity: 80–120ppm.
• Ideal pH Range: 7.2–7.8.
• Dissolve the product in a bucket of spa water.
• Distribute the solution evenly around the edges of the spa with the filter running.
• Run the filter for 4–6 hours after application.

Helpful Tips
• Do not add more than 200g per 5,000L in any 6-hour period. This helps reduce the risk of metals plating out on spa surfaces if metals are present.
• Do not add within 2–4 hours of applying Spa Calcium Up or Spa Hardness Raiser, as this may cause excessive cloudiness.
• Test the water regularly and adjust levels gradually to maintain the recommended ranges.

Product Details
• Brand: Zodiac
• Product Number: WPQINC500
• Pack Size: 500g
• Active Constituent: 1000g/kg Sodium Bicarbonate