Zodiac Spa pH Down helps lower pH and total alkalinity in spa water, supporting balanced water chemistry and effective sanitisation. Maintaining the correct pH level helps your spa sanitiser work efficiently and keeps the water comfortable for use.

Features & Benefits
• Lowers pH and total alkalinity in spa water.
• Helps maintain balanced spa water chemistry.
• Supports the effectiveness of chlorine sanitisers.
• Easy-to-use granular formula.

Application & Dosage
• Ideal pH Range: 7.2–7.8.
• Follow the product label instructions to determine the correct dosage for your spa volume and current water readings.
• To lower pH while minimising the effect on total alkalinity, dissolve the product in a bucket of water before application.
• Test the water after treatment and adjust gradually as required.

Helpful Tips
• High pH can reduce the effectiveness of chlorine sanitiser.
• Test pH and total alkalinity regularly to maintain balanced spa water.
• Always follow the product label directions and avoid adding more than the recommended amount.

Product Details
• Brand: Zodiac
• Product Number: WC000444
• Pack Size: 700g
• Active Constituent: 1000g/kg Sodium Bisulphate