Nobody likes hard water stains, especially on their shower doors. Often, it seems like typical glass cleaners barely touch these hard water stains, but there is a solution. To clean your glass shower doors in Houston , try out oxalic acid, also known as a Bar Keepers Friend product.

Watch the video for a demonstration of four different glass cleaners. Out of four glass cleaners—lemon and vinegar, oxalic acid, lime remover, and ammonium chloride detergent—oxalic acid was the most effective cleaner. It removed all of the hard water stains from the shower door, while the others either barely made a dent or didn’t clean the door at all. Oxalic acid is a powder substance that you would sprinkle on your shower enclosures and wipe down with water. Be sure you are wearing safety goggles and gloves, and keep the area well-ventilated.