I doubt despite having 500psi on tap the actual opperating pressure will be above 300-350 psi, this is what I have found with the Eclipse. Even using the higher psi I have managed to tune my set up to be super efficient, the power of the Eclipse both solution pressure and heat allow me to run 8001 jets in my prochem twin jet wand and maintain great results with low water consumption. On super grubby commercials ( black top etc ) I have fitted 8002 jets to aid flushing but this may not be necessary.
Paul