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Surfaces
"A surface is as clean as the last solvent that touched it." - John Durkee -
Process
"Cleaning is a process, not a chemical." - Barbara Kanegsberg
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Competence
"If you don't know why it's right, it's wrong." - Paul Loeffler -
Vision
"You've got to be very careful if you don't know where you are going, because you might not get there." - Yogi Berra