Okay this stinks. I followed Greywolf's advice to the letter. to fix the leaking unidrum. I let it cure two days and then tried it out. No leaks. I took the top off and emptied the water. Put the top back on and it leaked. I took the top off and it was clear that the twisting motion of the lid when it is put on and taken off stripped part of the silicon. Now I am stuck. The hardware store did not have any gaskets the gight sive either. Has any one tried to replace the rubber piece with a thicker piece. Maybe from a tire tube?