Applied Biochemists Staintrine back brush and pH tests to preserve

and pH tests to preserve color accuracy across all test steps

Built for real‑world use

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

and easier maintenance

Use it to repair

Applied Biochemists Staintrine back brush and pH tests to preserveApplied 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.