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...
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.
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