Jack's Magic The Blue Stuff (1L) is a high-performance sequestering agent specifically formulated to prevent and remove copper and metal staining and scale in swimming pools. Its proprietary chelating blend actively removes copper from pool water and binds dissolved metals and calcium, allowing the filter to remove them efficiently. The Blue Stuff is highly stable in elevated chlorine levels and works effectively with all pool types and sanitizer systems, including salt water pools with standard TDS levels. Use 1 quart per 10,000 gallons initially, then 6-8 oz per 10,000 gallons weekly for maintenance. An essential companion to Jack's Magic stain removal treatments and an effective preventative maintenance product for pools with metal content in the water.

SKU: JMS04000