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backwash filter
Use this product once a month to help maintain optimum water clarity
Backwash the filter as indicated by pressure build up
0 ppm also use BioGuard Sparkle-Up Filter Aid to assist in metal removal
add 2 lbs of Iron Stain Remover per 12
GLB Super Sonic Shock 5# backwash filterGLB SuperSonic is a highly effective multi purpose product that sanitizes, clarifies, prevents algae and shock treats your pool. It is convenient, easy to use and won't over stabilize your pool water. The fast acting formula can be used on all pool surfaces, does not contain cyanuric acid and leaves no residue.
US$ 12.99
US$ 12.99
US$ 20.99
