Muriatic acid is a strong and highly corrosive acid commonly used for cleaning and preparing concrete prior to etching, coating, and sealing. It is also used for pH adjustment in swimming pools, as it can help reduce pH levels that have become too high. Muriatic acid is a diluted form of hydrochloric acid and is used for a variety of heavy-duty tasks. Here are some common uses of muriatic acid:

• Cleaning concrete and masonry: Muriatic acid can be used to remove stains, including embedded oil stains, and mold from masonry and concrete surfaces.

• pH adjustment in swimming pools: Muriatic acid is used to lower pH levels in swimming pools.

• Cleaning hardware and plumbing: Muriatic acid can be used to clean hardware and plumbing.

It is important to note that muriatic acid is highly corrosive and can be dangerous if not handled properly. Extreme caution must be used when cleaning with muriatic acid, and proper safety precautions must be followed to avoid severe injury.