Summary

Heavy rain or tree roots can push old sewer lines past their limits. For this home in Watkins, the existing cast iron main had reached the point where a full replacement was the best path forward. We were called in to handle the upgrade and restore reliable drainage.

The Work

Dug and exposed the old main sewer line from the basement to the yard
Replaced outdated cast iron piping with new 4” Schedule 40 PVC
Installed interior and exterior cleanouts for future access
Added a backwater valve for extra protection against sewer backups
Reconnected to the main sewer system and tested all connections
Backfilled and compacted the excavated areas as much as possible

The Outcome

The home now has a modern, durable sewer system with better access for future maintenance. With the new backwater valve and cleanouts, the risk of backups is reduced and repairs will be easier going forward.

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Full sewer line replacement for a residential property

September, 2026 | Watkins, Minnesota

Project Overview

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