Now that you’re familiar with the kinds of water jetters available and understand how they work, it’s time to home in on a critical question: Which of these jetters best suits your needs?The answer to that question depends on several variables. But first, it’s important to understand the basic principles of waterjetting — pressure and flow. Measured in psi, pressure refers to the force with which the water is propelled through a hose via a high-pressure pump. Water is forced through small holes in a nozzle/cutting head that does the cleaning. Flow, measured in gpm, is a function of horsepower and pressure
