Pool Total Alkalinity Adjustment
Sodium bicarbonate to raise or muriatic acid to lower total alkalinity, by pool volume and the ppm change.
Example
You enter
- Pool volume (gal) 20000
- Current TA (ppm) 60
- Target TA (ppm) 100
You get
- Change +40 ppm
- Bicarb (lb) 12
Checked against published worked examples from: Lucas County (OH) Health Department.
Details, formula, and sources
ScopeThe buffer a tech sets before pH. A starting dose to add in portions and retest.
Formula or tableRaise: ~1.5 lb sodium bicarbonate per 10,000 gal per 10 ppm; lower: ~25 fl oz of 31.45% (20 Baume) muriatic acid per 10,000 gal per 10 ppm.
Source and editionNSPF CPO Handbook / ANSI-APSP-ICC dosing tables (by name).
Free accessProduct labels and SDS free with the chemical; CPO course materials proprietary.
What governsMath aid for personal verification. Stop work and consult the qualified person on site if any number does not match the field condition.
API field namesgallons, current_ta_ppm, target_ta_ppm, delta_ppm, bicarb_lb
- Target TA band ~80-120 ppm (advisory; lower for salt/plaster, higher for vinyl)NSPF CPO