Peroxide Residual
Calculator

Analyze your hydrogen peroxide test results to determine if your system is dosing correctly. Enter the H₂O₂ residual measured after your contact tank and before the catalytic carbon filter.

ppm
ppm
Fe ppm
Mn ppm
H₂S ppm
H₂O₂ Residual
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ppm
H₂O₂ Consumed
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ppm
H₂O₂ Residual Level
012345+
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Ideal residual: After the contact tank, you want 0.2 – 1.0 ppm of H₂O₂ remaining. This confirms enough peroxide was injected to fully oxidize contaminants, with a small excess as a safety margin. The catalytic carbon filter downstream will remove any remaining peroxide before the water reaches your faucets.