| 1. | Nonionic head groups have no charge and they function very well as grease removers.
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| 2. | Would a grease remover be advisable?
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| 3. | He sleeps in the basement, in a makeshift supply room crammed with broken sinks, copper pipes, and jugs of grease remover.
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| 4. | A grease remover is not recommended; such chemicals may dissolve grease but can kill microorganisms essential to the operation of the system.
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