Have made the decision to leave the dry walnut tumbling system with an old RCBS vibratory tumbler and move to a liquid cleaning system. Have SS pins and plenty of citric acid on hand … now I have to decide on the water tight tumbler. Which one is the best for the $ involved. My needs will not be high volume and in some cases I like to clean single boxes of .30 Carbine, .357 Mag, .41 Mag. and .45 Colt separately so as to keep them unmixed. I record on the box the number of times the cases have been fired, trimmed, etc. 9mm and .45 ACP are kept in larger quantities in ammo cans so are cleaned in higher volume. What are you using and what is the cost of your system? Big Boomer