Carefully pour the hot solution directly down the blocked drain. Do not pour it onto the basin or sink surface, as the extreme heat can crack ceramic or damage enamel finishes. Pour slowly to avoid splashing.
While effective, caustic soda is not suitable for every situation: using caustic soda to unblock drain
Sodium hydroxide can cause severe chemical burns upon contact with skin or eyes. Always take the following precautions: Carefully pour the hot solution directly down the
If a blockage persists after attempting these methods, or if there is concern regarding the condition of the pipes, consulting a professional plumber is the safest course of action. using caustic soda to unblock drain
It doesn't "dissolve" hair so much as digests it, converting organic sludge into a liquid soup.