Why is my hot tub pH low? Your pH levels should be between 7.4 and 7.6 If they're too low, chances are you have extra contaminants in the water. Body oils shampoo, Cosmetics dirt grass. Any of these natural contaminants can lower your pH. Your total alkalinity also keeps your pH in Balance.

If your alkalinity is too low, your pH can drop too. Finally, adding shock to your water can lower your pH regardless of what kind of shock you use. Add a pH increaser to bring your levels up. Be sure to always add your chemicals one at a time, waiting at least 30 minutes for it to circulate.

Then re-test your water. Follow us at swim! University for more hot tub care tips throughout the year:.