Hi all, I wanted to pump the waste tank as we do not know how long it is since it was emptied. However the cap on deck is stuck, I tried force as well as hammer but its not budging. I did also noticed that the screws around it were loose from before I started so I suspect someone tried to open it as well, making the socked for the cap loose on the boat and the screws almost giving no grip to stop it from rotatingwe are considering replacing the toilet anyways and perhaps will make this part of the process but we'd very much like to clean up the tank for the rest of the winter. Anyone had experience with this or know how the cap (and its socket) is attached to the boat ?any help would be appreciated