Agreed with what bro Gouldian said, regardless of whether u use sock or wool, u still need to practice good husbandry ( washing & cleaning of filter socks & changing filter wool every now & then ) in order to keep your tank water clean. Cheers and happy reefing.
If ur filter sock chokes or overflows easily, it might be due to the type of material of the sock, micron size of sock permeability, diameter and length of sock (too small).