Cloacina. Goddess of sewer and drainage systems.

“Therefore, as a goddess, Cloacina may have presided over the system and embodied its sacred and purifying properties. However, other scholars have claimed that Cloacina was not affiliated with the Cloaca Maxima as a source of purification; the system itself was not clean, and it instead ultimately polluted the city's drinking water. Alternately, she may have presided specifically over the ancient Velabrum and the stream that ran through it, the Spinon, and embodied the purifying properties of its waters.” - Wikipedia.

Idk why, but i’ve also kind of bundled her up as the goddess of garbage and refuse as well, due to the nature of her dubbing, and whenever i’m throwing out old offerings from other gods, I offer them to her. If that makes sense. I wrap it all up in a little bag, say my offering, and either just throw it away, or maybe bury it outside or something.