I use the Heatr liquid blanket product and also use skimmer socks. In the skimmer socks, I get a lot of white substance that I am guessing is the liquid blanket? I assumed the socks would let that through, but am questioning it with now seeing the white substance in the sock daily. Any experience? I don't want to waste money on the liquid blanket if it is getting caught in the skimmer sock and I am tossing it out. Or obviously, I could take the skimmer socks off.