Chlorine

OFF

Alkalinity

OFF

CYA

OFF

Free Chlorine

Commercial pools target 1.0 – 3.0 ppm. Chlorine sanitizes the water and kills bacteria. Tested with a DPD or ORP sensor.

pH Level

Commercial pools target 7.2 – 7.6. pH controls chlorine effectiveness and swimmers' comfort. Below 7.2 causes eye/skin irritation; above 7.6 reduces chlorine potency.

Total Alkalinity

Commercial pools target 80 – 120 ppm. Alkalinity buffers pH against rapid swings. Low alkalinity causes corrosion; high makes pH hard to adjust.

Cyanuric Acid (CYA)

Commercial pools target 30 – 50 ppm (indoor: 0). CYA stabilizes chlorine against UV degradation. High CYA locks chlorine — require higher free chlorine to maintain efficacy.

Commercial Swimming Pool Chemical Doser

Calculate precise dosing · Chlorine · pH · Alkalinity · CYA

V Pool Volume

Length (ft)

Width (ft)

Avg Depth (ft)

Pool Volume (gallons)

C Chemical Readings

Current Chlorine (ppm)

Target Chlorine (ppm)

Current pH

Target pH

Current Alkalinity (ppm)

Target Alkalinity (ppm)

Current CYA (ppm)

Target CYA (ppm)

P Product Strengths

Chlorine Product

pH Adjustment Direction

Alkalinity Product

CYA Product

D Dosage Table

T Dosing Frequency

O Safe Add-Order

⚠ Always add chemicals to water — never water to chemicals. Add one chemical at a time and allow 15–30 minutes of circulation before adding the next. Never mix chlorine with acid or ammonia-based products.

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Enter pool details and chemical readings, then click Calculate Doses.