What is the maximum temperature restriction for water entering the sewer in most codes?

The maximum temperature restriction for water entering the sewer, as indicated in many plumbing and building codes, is typically set at 140°F. This limit is primarily established to prevent damage to sewer infrastructure and to mitigate potential hazards. Higher temperatures, especially those above 140°F, can compromise the integrity of sewer pipes, which may be constructed from materials that are not designed to handle extreme heat. Additionally, hot water can pose risks to the workers who may need to handle or maintain the sewer system, as well as contribute to possible thermal shock to nearby wastewater treatment processes. Therefore, the establishment of a 140°F limit serves both safety and structural preservation purposes.