Step 21: Wet Polishing
Your first pass is with a diamond pad and this is where you'll see the most amount of change. Keep moving over the surface until you've gotten the desired amount of 'reveal' and then begin working your way down to the finer grits to continue smoothing and polishing. A good sign that you are ready to move on to the next grit is when the water starts running clear. Trust your eye and use the touch of the surface as your gauge, too.