Muriatic Acid is a 34% hydrochloric acid solution that can be used to adjust the pH in swimming pools, etch or clean concrete, stone, and masonry, or remove rust from steel and wall tile.
Always wear rubber gloves and safety goggles when handling this product. To adjust acidity in pools, use 200 mL of product per 10 000 L of water. Use a test kit to ensure that the pH is above 8.0. To etch or clean concrete, stone, or masonry, use 1 part product to 3 parts water. Scrub with a deck brush and rinse thoroughly with water. For rust removal, use 1 part product to 4 parts water. Use in well ventilated areas.