Divide fleece into 1- 1.5 lb piles. Open up locks a bit and place each pile loosely into net sweater bags. (You can skip the sweater bags, but this makes it easier to handle and less chance of bits of wool clogging up your drain)

Fill washer with 145 degree water (this may be hotter than your water heater is set... you may need to add some boiling water) and approximately 1 cap of liquid laundry detergent for every 1.5# of wool. If your water is hard, add a handful of washing soda ( like Arm & Hammer or 20 Mule Team Borax)

When washer is full of water , detergent and washing soda, THEN add fleece (in the net bags and evenly spaced around the agitator) and press to make sure it is well submerged. Turn off machine, close lid, and allow to soak for 20-30 minutes, pressing down with a stick occasionally . Before the water cools, turn the machine back on and SPIN (do not allow to agitate).

Remove net bags with fleeces, refill washer with hot water (a bit cooler this time is ok...no need to add that boiling water). Reinsert fleece bags and soak / press/ soak / press to rinse out the detergent. SPIN

Repeat the rinse process, but this time add 1/2 cup of white vinegar to restore the acidic condition to the fleece. SPIN.

Remove fleeces from bags and spread out on a screen or towel to dry. Any locks that were not cleaned by this process, can be pulled off , opened up manually and rewashed a second time, but usually without the grease to hold the dirt in place, the dirt will fall out with picking, combing or further processing.