Pool & Spring
Pool Chemical Calculator
Dial in your pool. Enter your gallons and your current readings — get dosages for chlorine, pH, and alkalinity.
FAQ
What order should I adjust? +
Alkalinity first, then pH, then chlorine. Alkalinity is a pH buffer — fix it and pH gets easier to hold.
Liquid vs cal hypo vs dichlor? +
Liquid is fastest acting (and won't raise CYA or calcium). Cal hypo adds calcium hardness. Dichlor adds CYA (stabilizer) — only use occasionally.
How do I lower pH? +
Muriatic acid or dry acid (sodium bisulfate). Start with a smaller dose and retest in 6 hours.