HTH Spa pH up, Increases pH for Spas & Hot Tubs, 2lb (Pool Chemicals) HTH Spa Care pH-Up increases pH level and prevents corrosion in Spas and Hot Tubs. HTH® Spa pH-Up(Increaser) helps balance how acidic or basic your spa water is, improving both water quality and comfort. pH-Up(Increaser) not only ensures that your sanitizer is working more efficiently, but it helps prevent corrosion of spa surfaces as well as significantly reduces skin and eye irritation. HTH® Spa pH-Up(Increaser) is great for all spa types including bromine, chlorine and biguanide. How To Use HTH® Spa pH-Up(Increaser): Use HTH® Spa Test Strips to test your spa water. If pH measures below 7.2 ppm, add HTH® Spa pH-Up(Increaser) directly to the filter skimmer with the spa circulation system running. Refer to the on-pack chart for the correct dosage. After the spa circulation system has been running for 30 minutes, re-test pH and add more pH-Up(Increaser) if necessary. Test and balance your spa water twice a week to maintain pH levels between 7.2 and 7.8 ppm. Balance the pH levels in your spa water for beautiful clarity, improved sanitizer efficiency and a more relaxing experience. Increases pH levels in spas and hot tubs Allows sanitizer to work more effectively Prevents corrosion of spa surfaces and equipment Compatible with all spa and hot tubs Contains mineral crystals HTH® Spa pH Up is formulated to provide a more relaxing spa experience. Compatible with all spas HTH® Spa pH Up is great for all spas, including bromine, chlorine and biguanide. You're all clear with HTH® For best results, use HTH® Spa Test Strips twice a week to test, balance and maintain total pH levels between 7.2 and 7.8 ppm.
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