Where we mention Clorox Pool&Spa Swimming Pool pH Down (5 lb)

• Weekly Pool Care: Your Maintenance Schedule and Checklist

  pH adjuster — lower · Best for: Lowering pH when it drifts above 7.8 during summer heat

• Why Your Pool Smells Like Chlorine (And How to Fix It)

  pH balancer if pH is above 7.8 · Best for: Sodium bisulfate that lowers pH so free chlorine becomes effective again; adjust before shocking