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The Total Hardness Test measures the amount of magnesium and calcium that have accumulated to form the hardness level in the pool or spa water
fertilizer
protecting equipment and reducing maintenance
Results in 15 seconds
small to mid-size in-ground pools
Applied Biochemists Staintrine back brush The Total Hardness Test measuresApplied Biochemists Staintrine is a dual action formula that combines a stain remover with a sequestering agent to quickly remove even the most stubborn stains. Its professional strength, easy to use formula can be applied without draining your pool and swimming can resume immediately after treatment. No testing is required with this product. Simply treat your pool and follow with weekly doses of Applied Biochemists Resit to prevent future staining.
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