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leave the cover off (or propped open) for at least an hour while chlorine residual drops back to 5 ppm or below
rinse off — total job time is under ten minutes per filter
Weight: 76 lbs / 35 kgs
and Classic run a set of three
it's Part 1 of a two-part system
FreshWater 5-Way Test Strips | Hot Tub Water Testing Type_Test Strips leave the cover off (orThe FreshWater 5 Way Test Strips give hot tub and spa owners a complete water snapshot in 15 seconds testing free chlorine, total bromine, total alkalinity, pH, and total hardness with a single dip. Manufactured by Watkins Wellness, these strips are designed for Hot Spring, Caldera, and Freeflow spas, but they work on virtually any residential hot tub regardless of brand or sanitizer system. Water chemistry is the single biggest factor in how long