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SpaGuard Spa Sentry 1 qt

  • Image 1
2.00 LBS
In Stock
Ships within 1 Day
Calculated at checkout

Product Description

Spa Sentry is a phosphate buffer that maintains a stable, comfortable pH in spas. Spa Sentry softens the water by removing calcium. Its built-in corrosion inhibitors protect the equipment so you can enjoy the easy maintenance of softened water. Do not use in plaster or tile surface spas.


  • Phosphate buffer
  • Corrosion inhibitor
  • Water clarifier
  • One-step liquid application
  • Maintains proper pH
  • Removes calcium
  • Softens water


  • Drain and clean spa surface with SpaGuard Surface Cleaner
  • Clean filter with SpaGuard Filter Cleaner 1 qt Spray
  • Refill spa or hot tub with fresh water
  • Leave heater off. Heater may be turned back on after application
  • Properly balance pH, total alkalinity, and calcium hardness levels
  • Add 1 qt. of Spa Sentry, wait one hour, add second bottle of Spa Sentry
  • Water will become cloudy. This is calcium hardness falling out of solution
  • Maintenance: 1 qt. per 60 days if continual experience of pH bounce


  • All In-Ground Spas and Hot Tubs
  • All Freestanding or Portable Spas and Hot Tubs
  • Not to be used in spas with plaster finishes or grouting that contains calcium

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