I rinse out the rot tanks, add clean hot water and a lot of Dawn dish soap. They sit in that with tank heaters until I deem them good enough. Typically elk are going faster than deer for some reason. Then I hit them with a garden hose that is hooked up to hot water.
Next up, I buy the 1 gallon jugs of 40 volume cream peroxide and then paint it on. Typically 2 days of that sitting in bright sun and the bones are quite white. I don't mix anything in them.
