Caustic Soda Blocked Sink [verified] -

Caustic soda—formally known as ( NaOHcap N a cap O cap H

Before starting, ensure you have :

If you have previously tried to clear the drain with a commercial acid-based cleaner or bleach, do not use caustic soda yet . You must flush the drain thoroughly with water first to ensure no residue remains, or you risk a dangerous chemical reaction. caustic soda blocked sink

If the water drains away, run the hot tap for a few minutes to ensure the pipes are clear of residue. Caustic soda—formally known as ( NaOHcap N a