I knew about the hole for the screwdriver since I had a similar macerator pump in my boat,but it was impossible to access it in my rig. When mine jammed, I was camping in the keys,and disconnected the sanicon and used a regular "stinky-slinky" for the rest of the trip. Removing the inlet hose fro the sanicon was not the most pleasant task I have ever tried to do, but was actually not as bad as it could have been. I put a heavy-duty garbage bag under the line, removed it and caught lost all of the effluent in the bag, then washed and disinfected the area. Next time, I plan to find a skinny midget and send them into the bay to free the macerator with a screwdriver, or make the offending female who stops it up fix it.