An in-tank illumination system, with a translucent tank (202, 204, 206, 208), with one or more sensors (340, 640, 730, 732, 734, 736, 738); the translucent tank (202, 204, 206, 208) having an interior configured to hold material, and the one or more sensors (340, 640, 730, 732, 734, 736, 738) configured to monitor conditions of the translucent tank (202, 204, 206, 208) and the material, the in-tank illumination system comprising: an illumination source configured to illuminate the interior of the translucent tank (202, 204, 206, 208) such that the tank illumination is visible outside of the translucent tank (202, 204, 206, 208); a controller configured to monitor sensor readings of the one or more sensors (340, 640, 730, 732, 734, 736, 738), to determine tank conditions based on the sensor readings, and to send control signals to the illumination source; wherein when the controller determines occurrence of a tank illumination condition based on the readings of the one or more sensors (340, 640, 730, 732, 734, 736, 738), the controller sends control signals to the illumination source to illuminate the tank (202, 204, 206, 208) to indicate the tank illumination condition, wherein the illumination source has a plurality of potential illumination colors, and the associated control signals sent by the controller include a color selection of the plurality of potential illumination colors, the color selection associated with the tank illumination condition, and wherein the illumination source has a blink capability, and the associated control signals sent by the controller include a blink selection associated with the tank illumination condition, wherein the blink selection indicates whether or not the illumination source should blink to indicate the tank illumination condition, characterized in that the one or more sensors (340, 640, 730, 732, 734, 736, 738) include a tank level sensor; wherein when the controller determines a material level in the tank (202, 204, 206, 208) has crossed above a first upper level threshold based on the readings of the tank level sensor, the controller sends first level control signals to the illumination source that include a first level color selection and a first level blink selection; and when the controller determines the material level in the tank (202, 204, 206, 208) has crossed below a first lower level threshold based on the readings of the tank level sensor, the controller sends second level control signals to the illumination source that include a second level color selection and a second level blink selection, where the second level control signals are different than the first level control signals. an illumination source configured to illuminate the interior of the translucent tank (202, 204, 206, 208) such that the tank illumination is visible outside of the translucent tank (202, 204, 206, 208); a controller configured to monitor sensor readings of the one or more sensors (340, 640, 730, 732, 734, 736, 738), to determine tank conditions based on the sensor readings, and to send control signals to the illumination source; wherein when the controller determines occurrence of a tank illumination condition based on the readings of the one or more sensors (340, 640, 730, 732, 734, 736, 738), the controller sends control signals to the illumination source to illuminate the tank (202, 204, 206, 208) to indicate the tank illumination condition, wherein the illumination source has a plurality of potential illumination colors, and the associated control signals sent by the controller include a color selection of the plurality of potential illumination colors, the color selection associated with the tank illumination condition, and wherein the illumination source has a blink capability, and the associated control signals sent by the controller include a blink selection associated with the tank illumination condition, wherein the blink selection indicates whether or not the illumination source should blink to indicate the tank illumination condition, characterized in that the one or more sensors (340, 640, 730, 732, 734, 736, 738) include a tank level sensor; wherein when the controller determines a material level in the tank (202, 204, 206, 208) has crossed above a first upper level threshold based on the readings of the tank level sensor, the controller sends first level control signals to the illumination source that include a first level color selection and a first level blink selection; and when the controller determines the material level in the tank (202, 204, 206, 208) has crossed below a first lower level threshold based on the readings of the tank level sensor, the controller sends second level control signals to the illumination source that include a second level color selection and a second level blink selection, where the second level control signals are different than the first level control signals.