Jack's Magic Power Blue Scale Off (1 L)
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Power Blue Scale Off by Jack's Magic
Power Blue Scale Off effectively removes 2-4 mils of scale above the waterline per application.
DIRECTIONS FOR USE:
Spray Power Blue Scale Off directly on dry tile, glass block, vinyl or stucco. Use full strength using the stream setting on the spray nozzle. Spray directly onto the scale and watch this amazing product go to work at dissolving the scale. Spray and brush. Repeat until scale is gone, then rinse. Always spot test in an inconspicuous area.