yeah! skimmer sock? good!!!! I used one last year(wife's old knee high). I didn't have one when I first opened pool this year, and was running the filter for 3 days straight, pool was clearing up, but just not as clear as it was last yr. So I bought some skimmer socks(knee highs) and wow, 2 days after that water was very crisp, and some funky stuff in the sock, that you couldn't see. So I'm sold on the skimmer sock, or knee high, but they both do the same thing...For the pool that is.