Quote Originally Posted by CarlD View Post
I've been using them for 3 years. They work great and reduce the number of times you backwash. I replace the sock about once a month--cheap enough!

Once a MONTH? I change mine daily. Of course, I get a lot of dog hair in the pool but even without the dogs, like a few days ago, I had something like a gazillion flying ants in there. Must have been a hatch. And during pollen season it got disgustingly full of yellow pasty gunk.

Changing the sock is part of my daily routine. I rinse it off with the hose, hang it over a fence post, and put another one in the basket. Once amonth? Man, you have CLEAN water!