A sewer lateral is a pipe, normally 4" in diameter for residential and larger for commercial buildings, which runs underground from the foundation of a home or business and connects to the public sewer main. This private sewer line transports sewage away from a home or business and deposits it into a larger public sewer main.
Most private laterals were installed when homes were built and the majority of these lines have never been repaired or replaced. Communities with clay pipe laterals having cement joints or cast iron laterals installed decades ago will have more issues compared to newer cities or newer sections of your city, which likely have PVC or ductile iron laterals. However, all laterals, both new and old, can still break, shift, collapse or become choked by roots.
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