I recently installed a Berlin BS-1 sump that I purchased thru Marine Depot for my 75gallon FOWLR tank. I have the filter sock installed on it along with a AquaC Urchin skimmer, and two bags of Chemipure in the compartment before the pump. My question is, do I need to use this filter sock? The manufacturer recommends washing it in hot water in washing machine every four days, which i do. What exactly are the pro and cons of this filter sock? It does seem to become saturated with lots of junk over the course of three to four days. And if i were to not use it would my tank become more cloudy and dirty? And would i need to siphon more out of the sump or tank during water changes? as you can tell I am a first time sumper