i can explain how to do it in 2 minutes. all you do is take apart your SS pump and you will see the needle wheel. remove it and just wrap fishing line all over it, just not so much that you increase the over all size. just get it criss-crossing alot, and then make sure you tie it off good. put back together, and your done. makes a pretty big difference, it breaks up the larger bubbles much better and give you a more dense foam.