What is Hydro-Jetting? Hydro jetting is the use of water under high pressure to clean pipes clear of various types of debris. It is a method used by professional plumbing companies to clean clogged or slow sewage lines. A blast of water at high pressure is sent into the lines that will usually remove blockages and build up. Hydro-Jetting is by far more accurate than your average “snaking”. Questions? Give us a call! 408-920-7080