Silenthitm4n

Silenthitm4n t1_j2iottf wrote

The pipe shown in the video is soil pipe (waste water), which across the network has a mix of old (clay) and new (plastics). There are loads of cracks, deformations, connection ridges, sludge/scale/shit build ups that these wheels would find it easier to climb compared to regular wheels.

Though, I could be completely wrong. Just my initial thoughts.

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