• Apr 2, 2026 Taylor Test Kit Guide 2004b outside these ranges, it’s important to take corrective action: Low Chlorine: Add chlorine sanitizer to boost levels and prevent algae growth. 1. High pH: Use muriatic acid or sodium bisulfate to lower pH. 2. Low Alkalinity: Add baking soda or alkalinity increaser to stabilize pH BY Miss Dianne Hodkiewicz