ProjectBuild Your Own Water Filter: ProjectsWhy spend a dollar a gallon for bottled water?Already a member? Log InWritten by Forrest Whitesides Why spend a dollar a gallon for bottled water?Already a member? Log InYou'll Also Like Project MEMBERS ONLY Whirlpool Port Install Whirlpool ports (and other miscellaneous ports) have become more common these days. One clean way to add a weldless port to your kettle utilizes a knockout punch. Project FREE The Trap Door Keezer Tap towers can be a design challenge for home draft system builders. Enter the trap-door lid design, allowing access to the keezer without having to move the tower.