I've had my HF rock tumbler for at least 10 years and the lid gaskets were shot, done, kaput. I looked for new ones at HF and come up empty, so a little Yankee ingenuity, and here are my solutions. First is a thin leather gasket that functions the same as the original rubber gasket. I had a bunch of it left over from recovering some dinning room chairs for the wife. I sized it dry to the size of the base of the tub. It works fine and gets better every time I use it as being wet it stretches some and becomes more flexible.
Second is an "econo-test-plug" from the plumbing supply store for 4" PVC. They are used to seal up PVC so you can pressure test during installation. The 4" works great but with one hitch, the wing nut is so large that I can only run one tub at a time. Not a problem for me as I am a low volume tumbler anyway. The plug option however makes building a longer tub out of PVC trivial. I may build and post that tomorrow.
pics below: .




Second is an "econo-test-plug" from the plumbing supply store for 4" PVC. They are used to seal up PVC so you can pressure test during installation. The 4" works great but with one hitch, the wing nut is so large that I can only run one tub at a time. Not a problem for me as I am a low volume tumbler anyway. The plug option however makes building a longer tub out of PVC trivial. I may build and post that tomorrow.
pics below: .



