I wanted to ask you fellow airport workers this because I believe I know the proper etiquette when performing one of these salutes, but I believe that our personnel haven't been exposed to the proper procedure because I see different ways it is done.
My belief is that when performing a water salute that the arch should be stationary and the aircraft drives under it. I should not be a "wash down" of the aircraft where the water is moved around and sprayed on the aircraft as if you are hosing it down. Also, the arches should criss-cross over the aircraft and not impact each other.
What is everyone's opinion/description of how they have seen water cannon salutes performed?