I know of someone that has a failing sewage ejector pump that when it was first installed, the inspectors demanded that the power feed be brought down into the pit, GFCI and corded back to the pump.
Even though he sealed the electrical box, the GFCI kept tripping the whole while. Becoming problematic, this eventually lead to switch failure due erratic use, so he thinks.
It is a float switch that is tethered but the pump stopped working, the sewage is now just flowing out of the back side of this tank, running down to a creek that leads to a pond.
This "pump" has to pump uphile, maybe 12 feet of head to overcome and the distance is significant, probably 100'+ to the front yard. No doubt this pump has to work hard to move that sewage to the leaching chambers in the front of this property. If you saw the lay of the land you'd understand why it had to go there. Personally? They should of high-walled the sewer from this modular home when they had the chance since it sits on a regular home foundation, and removed the mechanical equation out and turn it into a gravity one. I haven't offered this solution yet but I haven't seen the layout of the piping in the basement either.
All I know is that the smell at this fellow's property is horrible when the plumbing is active in the home, and if the neighbors lived close by, he'd done be reported. As a licensed master plumber and friend of this fellow I'm not inclined to report him, but I'd like to find a solution that best serves the problem and make it a safer enviornment for all. There is an implied danger with this setup that can lead to disease if not properly controlled/rectified.