I don't wash filter socks anymore! I cut the plastic top off of my filter socks and siliconed them to the top of a plastic bottle that I cut the top from. The bottle fits down into the hole where the filter sock goes. I drilled about 20 holes in the plastic bottle. I stuff it with filter floss. After 3-4 days, I simply take the floss out, toss it and insert new floss. Works like a charm and traps more sediment that the socks did.