Regarding nozzle pressure? Yes. A nozzle gauge with hypodermic needle that sticks right behind the nozzle is very helpful. This is our preferred method. Be careful with gauges. We work in a dirty environment that can damage gauges. Gauges have a short shelf life. Do not permanently mount these gauges. Get your readings at the beginning of your blasting operation and then put it away out of the blasting environment when you start blasting. This way you can use it next time and on future blasting projects.
