1. A method for monitoring level of material in a pipe comprising: mounting a digital camera in a waterproof housing in a fixed location with a lens facing a location of interest in the pipe; setting a timer interval for the camera to take a photograph; the camera taking and storing a photograph of the location of interest during each timer interval; retrieving the stored photographs from the camera; aggregating the photographs into a video stream; and detecting changes in the photographs that indicate changes in the level of the material in the pipe.