Alkalinity Up: Spa 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!
Creates more comfortable water
Our spa alkalinity increaser keeps the pH levels in range, which helps protect against skin and eye irritation.
Prolongs the life of your spa
Helps prevent damage to spa surfaces and equipment (pumps, filters and heaters).
Compatible with all sanitizers
HTH spa™ Alkalinity Up works great with bromine, chlorine and biguanide systems.
You’re all clear with HTH™
For best results, use HTH spa™ Test Strips twice a week to test, balance and maintain total alkalinity levels between 80 and 120 ppm.
How to use
HTH spa™ Care Alkalinity Up: Spa Alkalinity Increaser
1. Test Your Spa Water
Use HTH spa™ Test Strips.
Use HTH spa™ Test Strips.
2. Apply HTH spa™ Alkalinity Up
If the total alkalinity level measures below 80 ppm, apply directly to your spa water. Refer to on-pack instructions for the correct dosage. Allow water to circulate for 1-3 hours.
If the total alkalinity level measures below 80 ppm, apply directly to your spa water. Refer to on-pack instructions for the correct dosage. Allow water to circulate for 1-3 hours.
3. Test & Repeat As Needed
Total alkalinity should be maintained between 80 and 120 ppm.
Total alkalinity should be maintained between 80 and 120 ppm.