Clay pipe sewer issues - shift, collapse, roots, silt

Plumbing · Traps · printed page 288 (PDF page 289)

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Plumbing

Text in the illustration

Clay pipe sewer issues - shift, collapse, roots, silt silt infiltration tree root cavity pipe shift collapsed section of pipe
silt infiltration
tree root
pipe shift
collapsed section of pipe
cavity

Generated explanation

The illustration shows a longitudinal section through a clay sewer pipe with several failure conditions. At the left, a shifted pipe section is misaligned at a joint, where silt is entering and accumulating inside the pipe. In the center, part of the pipe bottom has collapsed into a cavity, with broken fragments lying below the original pipe invert. A tree root penetrates the top of the pipe farther to the right.