What a momentous day, fellow adventurer!
As you well know, fellow adventurer, the rocks have been going through the pre-polish phase. Well, they can't pre-polish forever! Eventually you'll have to head back down into your terrifying basement and just deal with the horrors that await you. It's time to get them started on the final phase, the polish!
The first step is to head downstairs. Many adventurers won't get past this step because they either are paralyzed with mortal fear or they forget that they have rocks tumbling downstairs and let them go a couple extra days and would rather not find out if anything has exploded. But the true adventurer will head downstairs, cautiously making his way to the corner where the noise of rocks smashing against each other sounds eerily like a troll eating the bones of foolish humans (any adventurer worth his salt knows that noise).
Once you have the cylinder in your sight and can verify that the noise is coming from inside it, shut off the tumbler, grab your rocks, and run.
REMEMBER: A good adventurer knows that there is probably a troll in the basement regardless of whether he can hear it or not. The most dangerous troll is the silent troll who lives in the firewood room!
Now that you're upstairs, head out back where you can flush the slop out of the cylinder with the hose. Make sure the pressure is high, because splashing rock slurry on your pants is the only way to prove to your friends that you participated in an adventure today!
Slurry, waiting to transfer itself to my clothes
With your cylinder of clean rocks, head back inside.
MULTITASK TIP: Wait ten minutes until you remember to turn off the hose. This way you can water a small portion of your lawn while you work on your rocks!
Your rocks should look about the same as they did before. This is good! The adventurer thrives on the fear that he has done something wrong. If you feel like crying, no problem! Let it out, fellow adventurer!
The same rocks as last week, but markedly smaller! Success!
To see if the pre-polish phase has taken, place a rock on a towel and sprinkle a little of the polish powder on it. Now scrub until the rock shines. If it doesn't shine, the instructions say to put the rocks back in the pre-polish solution for another 24 hours.
REMEMBER: The instructions are useless. Just get on with the polish phase.
Toss the rocks back into the cylinder with some fresh water and the polish powder. Prep yourself for what may be your final trip to the basement and final moments on Earth. Rush down, put the cylinder on the tumbler, start it up, run for your life.
Now we're polishing, fellow adventurer!
Conclusion: Adventure In Progress. Also, maybe you should put the tumbler in the garage next time.