- Location
- Staten Island
Hey guys. I've been out of the hobby a while. I've never used or had any type of filter socks. I'm wondering what exactly it's purpose is? I was going fill it up with some esv carbon but I've been reading and seems a lot of people change them out quite often. That raises another question do I have to keep a pile of these in hand and change them all the time or can they just be rinsed off and re used?