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

Product Features:

• 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:

1. Prevents scale build-up.
2. Helps keep spa water clear.
3. Removes fresh metal stains.
4. Protects spa surfaces.