See Also...313 314 ISOM Index Water and marsh index previous next
revision 01/00
312 Well
Wells and captive springs, which are clearly visible on the ground.
Colour: blue.
Line width 0.18mm
Circle diameter 0.8mm
As ISOM 2000 but line width was 0.175mm
Defined as line symbol 312.0. A point symbol can be drawn with any tool.
A shaft containing water or a captive spring, with some form of man-made surround.
If this symbol is used in a yellow area, especially a full yellow area (open land), then it will tend to green out, as both the blue and the yellow will print.
If you use the colour table hint to knockout the yellow, as described in the full blue topics, then there could be a problem with white edges to the symbol with any print misregistration.
There are more details in the Main Help File or in the Colour Help file.
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