HTH Spa Care Alkalinity Up, Raises Alkalinity, Stabilizes pH Fluctuation, 1.25 lbs

Low alkalinity levels in spa water can cause undue damage to surfaces and equipment. HTH® Spa Alkalinity Up not only raises the total alkalinity in your Spa & Hot Tub water, but it also helps keep the pH levels from fluctuating. This helps prolong the life of spa surfaces and equipment, like filter systems, and ensures healthy, comfortable water by protecting against skin and eye irritation. HTH® Spa Alkalinity Up is compatible with all sanitizers including bromine, chlorine and biguanide.

How To Use HTH® Spa Alkalinity Up Use HTH® Spa Test Strips to test your spa water. If the total alkalinity level measures below 80 ppm, apply HTH® Spa Alkalinity Up directly to your spa water. Refer to on-pack instructions for the correct dosage. Allow water to circulate for 1-3 hours. Test and repeat as needed to maintain total alkalinity levels between 80 and 120 ppm.

Keeps total alkalinity and ph levels in range
Protects against skin & eye irritation
Protects spa equipment & surfaces
Creates more comfortable water
Prolongs the life of your spa
Compatible with all sanitizers

About HTH® Spa Care

For generations, HTH® has been leading the way in smart spa care. We do the chemistry so you can just take it easy. From the very first day you open your spa or hot tub, HTH® is here to help maintain and problem solve. Our complete range of simple-to-use, no-nonsense products empower you to balance, sanitize and treat your spa—it’s everything you need and nothing you don't. There is nothing more relaxing than taking it easy in sparkling, clean water. With HTH®, your spa is always ready when you are.

Creates more comfortable water

Keeps the pH levels in range, which helps protect against skin and eye irritation.

Prolongs the life of your spa & hot tub

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.