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				Howdy,
 I've thought about it, but won't be doing it.  I'll have the floor flat and sloped a little toward the overhead door.
 
 Adding a drain introduces complications in where to take the water, and also makes the floor non-flat, which complicates life when used as a shop.  When the Garage Mahal gets built and not having a drain irritates me enough, I can always put one of those long skinny grate style drains just in front of the door.
 
 Mark
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