![Better Underground Communication Technology](https://cole-mswmag.imgix.net/https%3A%2F%2Fwww.mswmag.com%2Fuploads%2Fimages%2Fpksafety_-_confined_spaces.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=9c9b6ac66a810b5eec344c603b74c453)
Reliable communication is essential for any type of confined-space entry work, and hard-line communication systems provide a lifeline to the surface.
Sewer cleaning has a number of unique atmospheric hazards, thanks to the lack of natural air movement and an abundance of toxic and combustible gases. In an environment with hazards like these, communication with outside staff members and emergency medical services may mean the...