NA-05 - Cleaning: Solids in Drain and Sewer Systems (Demo)

Origin of solids

Solids entry through extraneous water (4)

The entry of solids due to groundwater infiltration or internal stresses at damaged sections (with exposed soil) leads to a build-up of deposits in the sewer channel, this can lead to backups and cave ins of the pipe itself.

Image: 
Large scale street collapse as a result of a leak at an incorrectly constructed joint between a lateral connection and a main line.  [Source: STEIN Ingenieure GmbH]

 

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