Robelle 2550 Pool Metal Remover and Stain Remover, 1-Quart

This product, which helps prevent discoloration of pool water due to iron, calcium, manganese, copper, and other metals and minerals that may be present in the water supply, is an excellent general-purpose sequestrant. It helps protect plumbing and pool walls from rust, stain, and scale, and should be used for all pool openings and closings, as well as throughout the season as needed.

For the initial filling of a pool, if iron or other metallic contaminants are suspected, add one quart of Metal Free for each 10,000 gallons of pool water. This should be done while the pool is being filled and before chlorine is added.

To correct an existing colored water problem caused by the presence of minerals in the pool water, first close the pool to all swimmers and leave the filter pump running. Stop chlorinating the pool and allow the chlorine level to drop to zero. Lower the pH of the pool water to 6.8 using pH Lower, as this will re-dissolve the metallic impurities. Then, add one quart of Metal Free per 10,000 gallons of water and allow the pool water to circulate overnight or until the water is clear. Re-adjust the pH of the pool water to between 7.2 and 7.8 using pH Rise. Begin normal chlorination and pool operation, and allow swimming to resume once the chlorine residual is between 1.0 and 3.0 ppm.

To make up for the loss of Metal Free due to backwashing and/or splash-out, add one quart of Metal Free for each 20,000 gallons of pool water, once each month.

This product helps remove and prevent the buildup of calcium, cobalt, copper, iron, lead, manganese, nickel, and silver in the pool water.

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