In the first picture of this series of pictures from the Hinterveld Mohair Factory Tour in Uitenhage showed the raw mohair as it comes in from the farm. From there it goes through a washing and drying process. The washing process takes the mohair through two baths where a machine with "spider" legs makes sure it gets dunked and washed properly. They then come out at this spot in the picture before being sucked into the drying pipes. I don't think people ever wonder how the mohair gets cleaned.