HTH™ Pool Care Alkalinity Up: Pool Alkalinity Increaser
HTH™ Alkalinity Up empowers pool owners to protect what matters most — your water, your pool, and your peace of mind. This powerful pool alkalinity increaser raises total alkalinity levels while preventing pH fluctuations that can damage pool surfaces and equipment. The result? A balanced, comfortable swimming experience that protects skin, eyes, and your pool’s long-term health. Ideal for all pool types, including saltwater and vinyl-lined pools,
HTH™ Alkalinity Up makes it simple to maintain healthy, crystal-clear water — so you can swim confidently every day.
Stabilized Pool Balance
Raises alkalinity and prevents pH fluctuations to protect pool surfaces and water comfort.
Long-Term Protection
Helps extend the life of your pool equipment, filters, and heaters by reducing corrosion.
Balanced Water for Lasting Comfort
Reduces skin and eye irritation caused by low alkalinity and unstable pool chemistry.
Expert Water Guidance
Use with the free HTH™ Test to Swim™ app for personalized water care recommendations.
How to use
HTH™ Alkalinity Up: Pool Alkalinity Increaser
1. Test Your Pool Water
Use HTH™ 6-Way Test Strips or Test Kit.
Use HTH™ 6-Way Test Strips or Test Kit.
2. Apply HTH™ Alkalinity Up
If the total alkalinity level measures below 60, apply directly to your swimming pool.
If the total alkalinity level measures below 60, apply directly to your swimming pool.
3. Test & Balance Weekly
Total alkalinity should be maintained between 60 and 120 ppm.
Total alkalinity should be maintained between 60 and 120 ppm.