This report outlines the methodology for using caustic soda (sodium hydroxide) to clear blocked drains. Caustic soda is a highly effective chemical agent for dissolving organic blockages such as grease, fats, oils, and hair. However, it is an extremely hazardous substance that requires strict adherence to safety protocols. This document details the necessary safety equipment, the step-by-step cleaning process, and the limitations of this method to ensure operator safety and infrastructure integrity.
Blocked drains are a common household and industrial maintenance issue. While mechanical methods (plunging, snaking) are often the first line of defense, chemical cleaning is utilized for stubborn organic obstructions. Caustic soda creates an exothermic reaction (generating heat) when mixed with water, which saponifies fats and turns them into a soluble soap, allowing the blockage to wash away. how to clean drains with caustic soda