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 HTH is here to help.
Raises Alkalinity Levels: Quickly increases total alkalinity in spa water to restore balance and stability.
Prevents pH Fluctuations: Keeps pH within the ideal range for consistent comfort and optimal water chemistry.
Protects Spa Equipment: Prevents corrosion and damage to pumps, heaters, and spa surfaces.
Gentle, Comfortable Water: Reduces eye and skin irritation for a smoother, more enjoyable spa experience.
Supports Sanitizer Performance: Helps bromine, chlorine, and biguanide systems work more efficiently.
Compatible with All Systems: Works seamlessly with all types of spa sanitizers and water care routines.
Simple, Reliable Results: Easy to use as part of your regular HTH™ Spa Care routine.
App-Enhanced Results: Connect with the free HTH™ Test to Swim™ app for guided water care and smarter, faster results.
