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A small square or circle marking a floor drain.
Also known as: Floor drain symbol, Gully plan symbol
On a building services plan a floor gully is drawn as a small square or circle in the floor, receiving water and discharging it to the drainage system.
Denotes a drain set into the floor to receive water.
Contexts: Technical drawing
Requires the floor to fall towards it, which is why a gully on a plan implies information about levels that the plan itself does not show.
Contexts: Technical drawing
A small square or circle set into the floor area, sometimes with a grating pattern of short lines across it.
A fuller structured visual breakdown is not yet documented for this symbol.