The vast majority of liquid and some powdered drain openers are highly concentrated caustics products like lye; some are concentrated acids like sulfuric acid. These chemical drain openers can potentially be hazardous to your health, your kids, pets, and some time to your plumbing system when you’re trying to open a slow drain. Injuries to eyes, lungs, and skin as well as damage to clothing and plumbing pipes and trim can be serious and expensive. Past reports from the Consumer Products Safety Commission (CPSC) report that the body areas most involved in chemical drain cleaner injuries were the head (16% of the time), Trunk (28%), arms (28%), legs (28%) and shockingly eyes (64%). While the risk of a chemical drain cleaner injury is low, the CPSC said the consequences of serious and sometimes permanent bodily damage are significant in any event that does occur. In addition, mixing different drain cleaning products in the same slow drain can gener...