Fumigating a sewer - GIF

Fumigating a sewer.

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Previously:

Clearing a clogged sewer - GIF
Main sewer pipe bursting - GIF
Mortaring a sewer wall in the 1880s - photo
Sewer inspection drone - GIF
Sewer maintenance machine - GIF

That is what happens when you eat Chinese food you have to fumigate the sewers

In China it's just called food...

I don't know what it is they are using but those covid masks are not going to help.