I have 3 filter socks and the only drain without one feeds into my refugium. I only have to wash the socks about twice a month. I still get a lot of build up in the sump with the socks so i could only imagine how mush there would be without. It literally takes 2 minutes to change the socks and throw them in the washing machine. that seems way easier than continuously cleaning the sump.
Very interesting. When I used filter socks they would clog up every two or three days. Not sure if it was necessary, but my wife always wanted me to run an empty load with bleach through the washer after washing the filter socks. That's one of the great things about this hobby, there is typically more than one way to do the same thing.



