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Urban sanitation is a crucial component of modern city infrastructure. As cities grow, the need for efficient sewer maintenance becomes increasingly important to prevent blockages, maintain hygiene, and ensure smooth wastewater flow. Sewer suction machines play a significant role in maintaining drainage and sewage systems by removing sludge, debris, and other waste materials from sewer lines, septic tanks, and drains. Understanding the working principle of sewer suction machines helps highlight their importance in maintaining efficient urban sanitation systems.