Product Fact Sheet: SpaGuard Stain & Scale Control

Product Features:

  • Prevents calcium and magnesium ions present in “hard” water from precipitating out of solution to minimise scale formation on spa and hot tub surfaces, and in pipes, filtration systems and heaters.
  • Prevents staining from metals like copper, iron and manganese.
  • Removes some fresh stains.
  • Prevents scale build-up.


  • Helps keep spa water clear and spa surfaces stain-free.

Application Instructions – Initial Treatment and Removal of Stains and/or Scale:

  1. Clean the filter.
  2. For best results, add Stain & Scale Control to water when the chlorine reading is 3.0 ppm or less. Do NOT add when the chlorine reading exceeds 5.0 ppm. High chlorine levels will break down the active constituent of this product and render it ineffective.
  3. Add 30 mL of Stain & Scale Control per 1,000 litres directly to the spa or hot tub with the pump running.
  4. Let pump run at least 4 hours after treatment.
  5. To assist removal of existing scale deposits or metal stains, brush effected area daily with stiff-bristled brush.

Maintenance Treatment:

  • Once a week, add 20 mL of Stain & Scale Control per 1,000 litres.

Available Sizes:

  • 490-mL bottles

NOTE: Avoid physical contact with product. Follow safety information on label Instructions. Store in a cool, dry place. Keep out of the reach of children.