How To Get Rid of Sewer Flies

Sewer Flies Galore! In this video, you can see a complete infestation of sewer flies in this sanitary line. They are present because the line is completely clogged with organic matter, grease, and debris. The maggots eat this organic matter and then turn into Sewer Flies. The only sure-fire way to remove these little creeps is to hydro jet the main line and remove them and the organic matter.