Haviland DuraChlor Winter Blue 22 Pool Winterizer - 30 lb

The Haviland DuraChlor Winter Blue 22 (C006000-BX30L) is a premium borate-based pool winterizing formula that delivers long-lasting protection for pools up to 22,000 gallons. Powered by sodium tetraborate pentahydrate, it locks in pH and alkalinity, prevents staining and scaling, and keeps your pool water clean and clear all winter long — giving you an effortless spring opening.

🚩 PRO TIP

For best results, balance your pool water (pH 7.2–7.7, total alkalinity 80–150 ppm, calcium 200–400 ppm) and shock with 2 lbs of granular chlorine per 10,000 gallons before adding Winter Blue 22. Broadcast the product over the pool surface with the pump running, wait 15 minutes, then add the remaining portion. Circulate for 3–6 hours before covering.

PRODUCT FEATURES

• ✅ Treats up to 22,000 gallons in a single application
• ✅ Locks in pH and alkalinity to prevent algae growth and staining during off-season
• ✅ Protects pool surfaces from staining and scaling caused by metals and minerals
• ✅ Dissolves quickly — no clumping or residue issues
• ✅ Ideal for use with mesh winter covers (allows water to pass through)
• ✅ Added water softeners provide a head-start on comfort and clarity in spring
• ✅ Compatible with all common sanitizing systems (chlorine, salt, bromine)
• ✅ Simple one-step application — no mixing required

TECHNICAL SPECIFICATIONS

• Brand: Haviland / DuraChlor
• Item Number: C006000-BX30L
• BayState Product No: HAV6000BX30
• UPC: 0-25551-87146-6
• Active Ingredient: Sodium Tetraborate Pentahydrate (60–70%)
• Net Weight: 30 lbs (13.608 kg)
• Coverage: Treats up to 22,000 gallons per application
• Dosage: 2 lbs per 10,000 gallons of pool water
• Application: Broadcast over pool surface with pump running
• Compatible Covers: Ideal for mesh winter covers
• Sanitizer Compatibility: Chlorine, salt, bromine systems
• Shipping Weight: 30.4 lbs

WHY SHOP WITH AL'S COOL POOL STORE?

• ✅ Fast, reliable shipping on every order
• ✅ Genuine OEM and top-brand parts only
• ✅ Knowledgeable pool & spa experts ready to help
• ✅ Hassle-free returns and satisfaction guarantee