Persistent, pungent smells of sewage or decaying organic matter near the drain. Primary Causes of External Drain Blockages
Wear heavy-duty rubber gloves, waterproof boots, and eye protection. Drain water is contaminated. Do not smoke or use open flames near manholes (sewer gas—methane—is explosive). blocked outside drain
Before you start, take these precautions: Persistent, pungent smells of sewage or decaying organic