Why is it important to ensure proper compaction in trenches?

Ensuring proper compaction in trenches is crucial primarily to provide stable support for pipes. When soil is compacted effectively, it creates a solid foundation that minimizes movement and settling of the surrounding earth. This stability is essential for preventing damage to the pipes, which can occur due to shifting or settling soil, leading to potential leaks or failures.

When pipes are supported by well-compacted soil, the load of the surrounding earth is evenly distributed, reducing the likelihood of stress or pressure that could compromise the integrity of the pipe. Furthermore, proper compaction helps in maintaining the alignment and functionality of the plumbing system over time, ensuring that it operates as intended without costly repairs or replacements.

While soil erosion, installation time, and water flow are important aspects in the broader context of trench work, they do not directly address the primary function of compaction regarding pipe stability.