Quantity selected exceeds current stock
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