Pool Total Alkalinity Adjustment
Sodium bicarbonate to raise or muriatic acid to lower total alkalinity, by pool volume and the ppm change -- the buffer a tech sets before pH. A starting dose to add in portions and retest.
Formula and source
Raise: ~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.
NSPF CPO Handbook / ANSI-APSP-ICC dosing tables (by name).
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