My kegs just got back from having the full couplings welded in them that I bought and left for the welder. To my surprise I have some full couplings and some half couplings welded in, who knew the welder knew more about what I wanted than I did. On my boil kettle I only have half couplings but I need to hook up on the inside a line that goes under my false bottom. The outside needs to hook to my pump. Ideas?