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SLAM Calculator

Calculate your SLAM target FC from CYA, estimate chlorine needed, check pH readiness, and see the exit criteria for algae removal.

SLAM safety note

SLAM requires sustained high chlorine levels. Keep swimmers out and verify equipment is rated for the dose.

  • Do not swim during SLAM — FC is well above safe swimming levels.
  • Brush every surface daily during SLAM to break algae biofilm.
  • Test FC and CC at least 2-3 times per day and maintain target FC.
  • Use the exit criteria before stopping — clear water alone is not enough.

Pool and chemistry values

Enter your pool volume, CYA, FC, and water clarity to calculate the SLAM target and check pH readiness.

Related playbooks

Cloudy Water DiagnosisAnswer 5 questions to find the real cause of cloudy water.Full SLAM PlaybookThe complete algae removal workflow with step-by-step instructions.Chemical Dose CalculatorCalculate precise doses for any pool chemical.

Educational guidance only. Verify labels, manuals, local code, and site conditions before acting. Stop for electrical, gas, structural, drain, drowning, injury, emergency, or chemical-mixing risk.

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