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How Long Does a Sewer Line Last?

Less than 20 years
20-40 years
40-60 years
60-80 years
80-100 years
More than 100 years
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Question: How Long Does a Sewer Line Last?
Top Answer (25% of 8 votes): 40-60 years.

Answer: 60-80 years
Explanation: Depending on the material used during installation. Cast iron corrodes and breaks down 45 to 60 years is typical prior to needing replacement. Terra cotta (clay) can last longer if it is installed on a hard bottom ditch with no settlement and no big trees nearby. Same for concrete. Proximity to large trees is always the worst scenario. A properly installed PVC sewer service line is good for a 100 years.
Plumbing Zone, Inc.
Answer: 20-40 years
Explanation: This would depend on the type of material used initially.
APEX Plumbing Co
Answer: More than 100 years
Explanation: If done with solid core sch 40 i believe it will last more than 100.
A Team Excavation
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