Connect A (1/4" quick connector) to pressure washer gun / wand.
Insert B (sand wand) into dry silica sand, dried river sand or baking soda. Note: Please make sure the sand is dry, otherwise it will block the hose.
Turn on the pressure washer and release the trigger gun, the water mixed sand will flow from D (nozzle). Note: Make sure section C is above D. If the section C is below D as shown in the figure, water will enter the hose and wet the sand, then the sand will not be sucked up.
Note: Please dry the cleaned items after cleaning ASAP, or they may rust again.