Natural Chemistry's METALfree is a highly effective chelating agent that prevents staining and discoloration from trace metals such as iron and copper. METALfree also prevents scale build-up due to calcium and other minerals. These trace metals and minerals may already be in the pool water or in the fill water. It should be used as part of a well designed pool maintenance program where local water requires it, or where well water is the pool water source.
METALfree does not contain phosphoric acids and will NOT raise phosphate levels in pool water.
Initial Dosage:
Add 1 bottle per 20,000 gallons to the pool water evenly around edge.
Weekly Maintenance Dosage:
Each week, add 1 capful (4 oz) per 10,000 gallons to the pool water evenly around edge.