Plumbing, the intricate system of pipes, tanks, and fittings required for the water supply, heating, and sanitation of a building; is an integral part of our daily lives and modern civilization as a whole. Among the numerous issues faced by plumbing systems, blocked drains are one of the most frequent occurrences. A well-functioning drain network is vital for maintaining hygienic conditions and smooth operation of household facilities. This article aims to review the underlying science behind dr...