5 long venturi Armex(Arm & Hammer) nozzle with Baking soda(Maintenance XL). These trucks are all aluminum so we do not use sand. It leaves too much of a profile(to rough), and it could warp the surface. The compressor we rented is working excellent I can cover a lot more surface in a shorter amount of time now. It’s still not at 120 psi. but rather @ 100psi. We are constricted now by the air hoses but it is still much more efficient.