HTH spa™ Alkalinity Up
Hot Tub Alkalinity Increaser
HTH spa™ Alkalinity Up
Hot Tub Alkalinity Increaser
HTH™ Spa Alkalinity Up helps you maintain a balanced, relaxing spa experience with water that feels as good as it looks.
- This powerful spa alkalinity increaser formula raises total alkalinity levels, helping stabilize pH and protect your spa surfaces and equipment from corrosion or damage.
- By preventing fluctuations in water balance, it ensures your sanitizer performs at its best and keeps your water comfortable, clear, and irritation-free.
- Safe for use with all spa sanitizing systems.
HTH™ Spa Alkalinity Up makes water care simple and dependable!
Product Benefits
How to Use
How to Use
This product is formulated to raise total alkalinity in spa and hot tub water. Maintaining proper alkalinity helps stabilize pH, improves sanitizer performance, and protects spa equipment.
The ideal total alkalinity range for spas is 80–120 ppm.
Application Instructions
Use this product when total alkalinity tests below 80 ppm.
With the circulation system running, add 1 ounce (2 tablespoons) of product directly to spa water.
Allow water to circulate for 1–3 hours.
Retest total alkalinity and repeat application if needed until the alkalinity reaches 80–120 ppm.
Compatible Systems
This product is compatible with all spa sanitizing systems, including bromine, chlorine, and biguanide.
Ingredients
Ingredients
Principal Functioning Agent:
Sodium Bicarbonate: 100%
Safety, Storage, and Disposal
Safety, Storage & Label Guidance
Use this product only as directed. Avoid contact with eyes and skin.
Avoid breathing dust and wash hands thoroughly after handling.
Do not mix with other chemicals.
Store in a tightly closed container in a cool, dry location.
For complete safety precautions, first aid instructions, and disposal information, always refer to the product label.
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Quick Spa Tips
Always read product label directions and use only as directed
Always add chemicals to spa water, never the other way around
Never add chemicals to spa water when people are in the spa
Never mix products together
Always store spa products in a cool, dry location and away from direct sunlight
Always wear proper safety equipment when handling chemicals
