Did you know? A clogged drain can sometimes be fixed with a simple mixture of baking soda and vinegar, which helps break down debris. ⋆ In the 19th century, plumbers often used lead pipes, which were later replaced by more durable materials like copper and PVC. * In ancient China, bamboo was used as a form of piping for irrigation and drainage systems, demonstrating early plumbing techniques. * The first water conservation laws were enacted in the early 20th century to address increasing water demands and protect resources