Buy the foot pump to open the expert drums. When you use it keep your chin out of the way or visit a dentist and an orthopedidic surgeon to have your broken jaw fixed.(posted 9335 days ago)Refill the individual slots with water when done in order to "float" out the film.
One idea to overcome the level problem is to use an extra amount of chemestry because the real danger is one area not being touched by the chemical.
I had excellent consistant results with TMAX 100 and the Jobo. Never scratched a single one.