Abstract: A bubble trap includes a body having an interior surface bounding a cavity that extends between an upper end and an opposing lower end, an axis extends centrally through the cavity of the body between the upper end and the lower end, a first plane extends through the body orthogonal to the axis so as to divide the body into an upper body portion and a lower body, the interior surface of the lower body portion having a constant first radius from a fixed first center point, the interior surface of the upper body portion not having a constant radius from a fixed center point. A tubular spout projects into the cavity at the lower end encircles a channel that communicates with the cavity. A liquid inlet port, a liquid outlet port, and a gas outlet port communicate with the cavity.