Haviland DuraChlor Alkalinity Increaser 5 lb Pail (C002669-CS50B2)

Stabilize Your Water Chemistry & Prevent pH Bounce

Maintaining proper water balance is the foundation of a crystal-clear swimming pool. The Haviland DuraChlor Alkalinity Increaser is a professional-grade, 100% Sodium Hydrogen Carbonate formula designed to quickly bring your total alkalinity into the ideal 80–120 ppm range.

When alkalinity is low, your pH levels will "bounce" erratically, leading to cloudy water, skin irritation, and costly damage to your pool’s plumbing and surfaces. This fast-dissolving granular balancer creates a "buffer" for your water, making weekly maintenance easier and more predictable.

🚩 PRO TIP

Add this product with the pump running, broadcasting it across the deep end. Wait at least two hours before retesting. If alkalinity is very low, dose in stages (no more than 10 ppm per treatment) to avoid overshooting your target range.

Key Benefits

• Stops pH Fluctuations: Provides a buffer to keep your water chemistry stable.
• Protects Your Investment: Prevents acidic water from corroding heaters, ladders, and concrete finishes.
• High Purity Formula: 100% Sodium Bicarbonate with no added fillers or residues.
• Universal Use: Compatible with chlorine, bromine, and salt-water pools.

Technical Specifications

• Brand: Haviland / DuraChlor
• Part Number: C002669-CS77C2
• Weight: 5 lbs (2.267 kg)
• Dosage: 1.4 lbs per 10,000 gallons to raise alkalinity by 10 ppm.

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