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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 (33% of 12 votes): 40-60 years.

Answer: Less than 20 years
Explanation: There's no guarantee to this answer. That is the average lifetime of a sewer line. Depending upon the material it was used to make it
Answer: 40-60 years
Explanation: The average plumbing system should last approximatly 50 years if treated properly. Keep your foundation watered to prevent soil movement. I see a lot of sewer issues due to foundation issues.
SDL Plumbing Inc.
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: More than 100 years
Explanation: If done with solid core sch 40 i believe it will last more than 100.
A Team Excavation
Answer: 40-60 years
Explanation: If today's materials are used + installed professionally, indefinitely.
Peace of Mind Plumbing LLC
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