“the wall was made of unsellable fluffies, put on life support they are fed a steady stream of raw sewage and contaminated water. [the sewge] passes from fluffy to fluffy until the last one is passing pure liquid water. the system is not too terribly efficient, but does in fact help remove heavy metals and other contaminants from the water supply!”
excerpt:
figglefart, boscoe g. (2038). the penitential rite: fluffy powered environment cleaning . Popular Biomechanics , 3(12), 54–60.