This reduces the heavy lifting – literally – that our machinery needs to handle, and it can make the job a whole lot more efficient as a result. Pre-vacuuming is ideal for siphoning as much loose dirt away from your carpet as possible before it is treated with any form of moisture. This prevents it, when wet, from becoming embedded deeper afterwards, which would then require additional cleaning and perhaps higher-powered equipment to remove. In a sense, it’s sort of like sanding a piece of rough wood before clear coating or oiling it for that beautiful finish.