I need the creative thinking of the group here...

I need to set up an area, in a warehouse/garage type room, to wash equipment in 
the winter. The area will be about 20 ft by 10 ft, with one side at a garage 
overhead door. My intent is to be able to wash equipment in this area in the 
winter, with the door mostly closed. Outside the door, I need to funnel the 
runoff water parallel to the door (would normally run off perpendicular down a 
driveway). The area has other heavy roll around equipment that needs to cross 
the area when not used for washing, as does the driveway (cars and trucks), and 
it can't be a trip hazard. The outside part must also withstand sun and 
elements if permanent.

Conventionally, an interesting approach would be to build a mound or curb in a 
U shape, open at the door, with another curb/mound (of concrete) at a small 
angle to the door. This lets runoff go into the soil, rather than potentially 
freezing the drive. The door would stay open a few inches during use, letting 
it out of the warehouse. It is imperative that it doesn't leak. Normally, one 
would have a french drain, but the floor isn't sloped at all (I'll probably 
squeegee it dry afterward with a containment approach) and it can't be 
retrofitted  for one anyway. The depth of water/soap/runoff in use might go to 
an inch or more in full flow in places, but the area will generally be 
surrounded by plastic curtain.

It should optimally be fold up or roll up and storable, cheap (using existing 
cheap products not originally intended for this would be OK), durable (in case 
it was left outside), conform to the variation in concrete (if it uses a seal 
between the 'wall' and the floor) (the variation is little bumps and such in 
the outdoor concrete), and not adhered down. It should also be easy to deploy. 
I think about 4" high, +-, should work, but don't let that stop ideas.

I 'feel' like the solution is right around me, but I don't seem to be able to 
find it. It isn't tough, just not usual. I know someone(s) here has probably 
already done this, or can see more clearly and has an idea.


Thanks in advance.
-Skip
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