Benefits of Using a Sewer Jetter Trailer for Large-Scale Cleaning https://usjetting.com/benefits-of-using-a-sewer-jetter-trailer-for-large-scale-cleaning/ If you’ve never heard of hydro jetting, it’s time to get acquainted with this innovative process. A hydro jetter is a piece of machinery often mounted on a trailer that uses an engine to create a forceful, concentrated stream of water. This stream of water can reach levels of 10,000 PSI or higher, although most jobs only need levels in the 4000-8000 PSI range.