BioGuard SPA Defence prevents staining and water discolouration from metals, and scale build-up from excessive calcium.

• 133g/L organic phosphonates
• Prevents calcium and magnesium ions present in ‘hard’ water from precipitating out of solution
• Helps to prevent staining from metals like copper, iron and manganese

Benefits

• Prevents scale build-up
• Helps keep spa water clear
• Removes some fresh metal stains
• Protects spa surfaces