A Plumber's Guide to Trench Digging

If you tackle septic installation, use this step-by-step process for careful trenching to ensure pipes last for the long haul.
A Plumber's Guide to Trench Digging
Follow the compaction specification guidelines provided by the pipe manufacturer. Additional compaction is required where piping runs under improved asphalt or concrete surfaces.

Trenches must be dug, prepared and backfilled in a way that prevents pipe damage. Common damage includes cracking, breaking joints and creating dips or bends in the pipe. Trench bottoms should be free of rocks and debris and provide uniform support. If there is bedrock, hardpan...

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