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A chambered box on a drain run.
Also known as: Grease trap symbol, Fat separator symbol
The plumbing drawing symbol for a grease interceptor, a chambered vessel separating fats from kitchen waste water.
Marks a grease interceptor on a plumbing drawing.
Contexts: Technical drawing
Draws its internal chambers, because the separation depends on the number of them and a single-chamber vessel would not work.
Contexts: Technical drawing
A rectangle on the drain run divided into two or three chambers by internal lines.