Horizon pH Decreaser - Sodium Bisulfate

1H-PHD01

1H-PHD02

1H-PHD04

1H-PHD03

Maintain perfect pool water balance with Horizon pH Decreaser, a fast-acting, easy-to-use formula made with high-purity sodium bisulfate. Specially designed to lower high pH levels in swimming pools, Horizon pH Decreaser helps prevent scale buildup, cloudy water, and equipment damage, ensuring a safer and more comfortable swimming environment.

When pH levels rise above the recommended range of 7.2–7.6, pool water becomes less effective at sanitizing and can cause eye and skin irritation. Horizon pH Decreaser gently brings pH back into balance, promoting crystal-clear water and enhancing the performance of chlorine and other sanitizers.

Key Benefits:

  • Accurate pH Control: Quickly lowers high pH to the ideal range, improving swimmer comfort and water quality.

  • Prevents Scale & Cloudiness: Helps avoid calcium buildup and cloudy water caused by elevated pH.

  • Protects Equipment: Reduces the risk of corrosion and scaling on pool surfaces, filters, and plumbing.

  • Convenient & Safe: Dry, granular form is easy to measure, store, and apply with minimal risk of splashing or fumes.

  • Professional-Grade Purity: Trusted by pool professionals for reliable, consistent performance.

Ideal For:
Commercial swimming pools and spas requiring routine pH management for optimal water balance and equipment longevity.

Directions for Use:
Test water pH regularly. Broadcast Horizon pH Decreaser evenly across the pool surface with the pump running. Refer to dosage instructions for proper application based on pool size and pH level.


NOT available for purchase online. Please call to inquire about pricing, order and delivery options.

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