Achieve a perfect whirlpool everytime with Blichmann's weldless whirlpool kits. They come with 3 different options for the valves. You can get the Blichmann linear flow valve, a 3 piece ball valve, or a 1.5 in TC butterfly valve. Regardless of which valve you choose you can hook up a pump and get a strong whirlpool action to help you settle out some of that unwanted trub!
Note: These kits require a hole in your kettle of about 13/16 in. You may drill this hole yourself using the instructions in the documents tab or use these kits if your kettle already has a hole.