My filter sock keeps overflowing on my new tank. It only takes about 2 days. Sock is not dirty. It will do it on brand new socks. Don't know if it has something to do with the way the sump is built. The sock is always halfway under water. I have never had a sock on my other tanks so I don't know what to change. Any ideas?

. I also had the same issue with my old socks, so I now just use the filter sock thingy that comes in the GFO I buy. I clean is about once a week now.

