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Test your spa water like a professional with Spa Time 5-Way Test Strips. These strips measure Free Chlorine, Total Chlorine/Bromine, pH, Total Alkalinity, and Total Hardness. Spa Times 5-Way Test Strips provide accurate results and come with an easy-to-read color chart. Its important to test your spa regularly to maintain a pH balance of 7.2-7.6 and 3-6 ppm of bromine, or 3-5 ppm free chlorine. Additionally, remember to drain, clean, and refill your spa every 90 days.