It’s easy to wet sandblast. You take your pressure washer attach a pressure washing sandblasting kit. Take the kits probe and stick this into your sand bucket, this probe (line) is used to draw in the sand (or any other type of materials discussed in this article, being used as the abrasive substance) to the power washers extension wand, this is where the sand mixes with the water and is propelled towards the surface it’s being pointed at, at high speeds.