I use a false vottom right now, made from the keg top drilled 1/8 inch holes all over it and cut slits on the raised star pattern. I use a drilled #10 stopper and run a pickup tube thru the center. I get much better filteration thru the braid in my 10 gal igloo cooler, I vorlauf once or twice and its clear I need to run 10 vorlaufs in my false bottom and yes it seals along the edges pretty well.