I too used to lose a lot of my wort due to not filtering out the trub and hot/cold break. I tried the paint strainer suggestion, and it works great. I put one filter on top of another in a metal strainer, and pour through the 4 layers of strainer. A little bit of "silt" gets through, but everything that has settled and flocked out pretty much gets caught in the strainers. Ever since I started using Irish Moss, I have been getting better results. The strainers start to clog and the trub is another layer of fitration for the trub. My pot does have not a spigot yet, so that is why I pour, but I don't lose the usual 1/2 gallon like I used to.