Master plumber question

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If no food is to be prepped at this fixture, would it need to pass through a grease trap?

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i am not a master plumber but heres my advice from working with many of them

anything like a school that has kids you better strictly follow the code requirements, they tell you whats needed.

offhand i can tell you soap and grease are very much alike in what happens to it after going down a drain. for that reason, i might put a grease trap whether its required or not, to trap the soap residue that acts much like grease and collects it drain pipes

Is that normal code for a school? I have no idea, just an odd question unless someone told you that school sinks need a grease trap?

No