Several years ago (may 10 or more), while on our way to attending Howdy Herz' casino collectibles show in Lake Tahoe, Brenda and I stopped in the Lakeside Inn for lunch and witnessed their rack chips being cleaned at a dead roulette table. Chips were soakeing in plastic buckets with some kind of detergent and then rinsed in buckets of clear water, then dried. Never saw this before.