A drain hub can include a housing, a base, and a damming device. The housing has a cavity that traverses its length and can include a top housing portion, a middle housing portion having at least one wall and a number of drainage apertures that traverse the wall, and a bottom housing portion. The base is rotatably disposed within the housing cavity and has a base cavity traversing its length. The base can include a top base portion having a number of slotted features disposed along a top surface. The base can also include a bottom base portion that extends beyond an aperture in the bottom housing portion. The damming device can be disposed within the housing cavity adjacent to the top base portion and the top housing portion, where the damming device has an elastomeric material and at least one aperture through which at least one conductor traverses.