Acid Magic - Hot Tubs, Spas, Hot Tub Covers, Spa Chemicals
Acid Magic is safer for spa or pool lime scale cleaning. Won't burn intact skin, about 90% less fumes. To acid wash filters, first clean with Power Soak or ecoTUB Filter Soak. Rinse, then soak in 1 part Acid Magic to 20 parts water until bubbling stops. Great for cleaning tile, brick, stone, grout, and concrete etching.