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Soft Soak Spa Stain & Scale

Soft Soak Spa Stain & Scale

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Soft Soak® Stain & Scale is designed to prevent scale buildup and catch metals in your water and deposit them in your filter before they can stain your hot tub.

  • Liquid chelating agent (EDTA)
  • pH~11
  • For use in Soft Soak® hot tubs only
  • Helps prevent scale caused by hard water
  • Helps prevent staining from metals
  • Prevents loss of shock caused by possible metals in the water

Soft Soak® Stain & Scale prevents scale buildup and metals dissolved in your water from oxidizing and causing staining on your hot tubsurface. This both protects the beauty of your pool, and makes sure your Soft Soak® Sanitizer and Shock don't negatively interact with the metals creating a scum line or dissipate faster than they should. Designed specifically for biguanide sanitation systems.


Always follow label instructions, dosages are provided here to inform your purchase decisions. These dosages are not meant as a replacement for label instructions.

Startup: 1 ounce per 150 gallons of water

Maintenance/Preventative: 1/4 ounce per 150 gallons of water weekly

Approximately 6 month supply for 300 gallons of water.