Natural Chemistry Spa Metal Free

This formula is specifically concentrated for the smaller water volume and higher temperatures of a spa. It is also phosphate-free, which is critical for spas because phosphates can lead to rapid algae growth in warm water.

No, it is designed to be neutral and will not interfere with your sanitizer, pH, or alkalinity levels. It focuses solely on sequestering metals to prevent them from settling on surfaces.

While it is primarily a preventative treatment to keep metals suspended in the water, it can help prevent existing stains from getting worse. For heavy, existing staining, you may need a more aggressive stain-removal treatment first.

The best practice is to add it upon initial fill or after adding fresh water to the spa. If you have a known issue with high metal content in your source water, you may need to add a maintenance dose periodically.

Yes, it is compatible with all spa sanitizing systems, including chlorine, bromine, and salt-based systems. It will not cause cloudiness or chemical reactions with standard spa chemicals.