Never do more than 5 minutes of ultrasonics at one time.
Only add water as it evaporates (not more new solution) to maintain the level of solution after the initial fill up of tank.
During the ultrasonic cycle, use the cleaning block (gently moving it across the roll back and forth) to help remove ink that is ready to come off rolls. After 5 minutes of ultrasonics, whatever dark
spots or sections are still on the roll indicate more soaking time is needed.
When the roll is done, do not remove the roll-over turner to avoid getting solution on it.
Rinse the roll with tap water and dry with a cloth or paper towel.
Soaking times may vary due to the strength of the cleaning solution. A stronger cleaning solution will require a shorter soaking time. A weaker cleaning solution will require a longer soaking time to loosen up dried ink debris.