Instructables

Gray-B-Gon wind-powered evapotron for graywater disposal

Step 34: In Operation: Shutting Down

So it's Monday after the Temple burn, and you're packing up.  Your Gray-B-Gon evapotron, having chewed through fifty to a hundred gallons of wastewater, may now be dry, with delicate mudcrack resting on the black plastic sheet.

Or it may not.  Other camps, packing up, may still be contributing their final dishwater.  Not a problem: the dismantling process gets rid of the water.  You may want to wear rubber gloves.
  • Remove the nut or skewer that holds the propeller to its metal angle.  Unscrew the propeller arm from the mast.
  • Remove the wing nuts holding the gussets to the tray, and remove the masts and drum.
  • Remove one plywood staple anchoring the filter bucket, and remove the filter bucket.
  • Drag the tray to a nearby vacant area and, while you continue dragging, lift one end slowly.  As long as the spillage trickle you leave behind you doesn't form a mud patch, it's legal; it has been treated and dispersed.  When only mud remains in the tray, drag it back to camp.
  • Remove the rest of the plywood staples.  Lift the black plastic liner by its corners and drop it and the towel into your garbage bag or bucket.
  • Remove eight carriage bolts.
  • If you trapped the keeper with a small screw, remove it.  Turn the drum vertical and squeeze the beveled junction so the keeper slides to the other end of the axle. Remove the short and long axle pieces. Put the collapsed drum and the propeller into the large clear plastic bag for travel.
Once you get home, spray clean all the pieces.  Spray into the wheel bearings -- clean water is better for them than salty alkaline dust.  The drive belt cleans up well in a washing machine; ditto the panty-hose filter, but replace it if you prefer.  Giving the wood an annual coat of varnish, at least all the end grain and plywood edges, will greatly extend its lifetime.

 
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