BioGuard Pool Magnet Plus prevents staining due to iron, copper and manganese. It also eliminates discolored water from metals. This product has been recently reformulated and is now more concentrated and effective as ever. Pool experts recommend that this product be used monthly in pools that hold iron-containing fill water. It is only necessary to be used monthly because it stays effective for 3-4 weeks. It is recommended to use Pool Magnet Plus in conjunction with BioGuard Sparkle Up to remove metals from the water. Dosage Stain Prevention: 32 fl oz per 10,000 gallons of water. Maintenance Dose: 3 fl oz per 1,000 gallons of water added to the pool. Removal of Fresh Stains: 32-96 fl oz depending on severity of stain. Directions Stain Prevention: To treat for metals in pool water, backwash filter, then allow pump to run continuously. If the total amount of metals present exceeds 1.0 ppm also use BioGuard Sparkle-Up Filter Aid to assist in metal removal. Use 1 quart of this product per 10,000 gallons of water per 1.0 ppm of metals. Maximum recommended dose is 3 quarts per 10,000 gallons. If pool has been shocked , wait 24 to 48 hours before applying this product to obtain maximum effectivenes. Add directly to the pool in the area of any localized metal stains. Some temporary clouding may occur. Product should be added when chlorine is 1.0 ppm or less and 7 days prior to superchlorination to minimize staining potential. Backwash the filter as indicated by pressure build up. Never allow filter pressure to exceed the limit established by the manufacturer. Maintenance Dose: When make-up water contains metals, add 3 oz. of this product per each 1,000 gallons of water added to the pool. Removal of Fresh Stains: Many fresh metallic stain can be removed by the action of this product. Turn circulation off for 8 hours. Slowly, and as close to the surface of the water as possible, pour one to three (depending on severity of stains) quarts of this product directly in the area of the the stain. Do not swim or operate pump for 24 hours. After waiting period, turn pump on, circulate water, and brush pool for 5 to 7 days. Use BioGuard Sparkle-Up in the filter to remove redissolved metals. Repeat treatment for large metal stains. For white plaster pools where large metal stains have aged into the pools surface, draining and acid-washing is recommended. Consult your BioGuard Dealer regarding this procedure.
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