I started washing the fleeces with the least lanolin which were the Babydoll fleeces. They can take cooler water to get clean. So with 120 degree water and some Dawn, I filled the tub, then put the fleece in to soak 1/2 hour and then spun out the water. The fleece must be removed from tub before filling again to avoid felting. I repeated that, then filled with water again for rinse. 2 washes and 2 rinses later, a fleece is as clean as it will get before picking. Multiply this by 3 and it was most of a day’s work.