How Often Should You Actually Test Your Pool Water?
Baseline: 2-3x/week for free chlorine and pH in regular swim season. Bump to daily during heavy use, after heavy rain, during a heat wave, or right after shocking/balancing.
Alkalinity: weekly. Calcium hardness: monthly. Cyanuric acid/stabilizer: monthly. TDS: a few times per season.
Test strips are convenient but less precise; liquid test kits are more accurate; a pool store's free professional test every few weeks is worth doing even if you test with strips daily.
Simple rhythm: Monday/Thursday chlorine+pH, Saturday full test including alkalinity, monthly calcium/stabilizer check.
Pool Balance's free calculator turns each test into exact dosing for your pool size, so testing actually translates into the right fix.