I’ll start off. I don’t know how to use the designing software but I was thinking a 1/2’ removable dip tube on a compression fitting (removable for cleaning purposes and for the ability to change it out for different dip tubes) that goes around the inside diameter of the base and has little holes like a percolator. All the little holes are 1/8" big. The compression dip tube part would be on one of these for the inside and then on the outside would be a regular 1/2" npt flare.
the compression on the inside and the npt on the outside