Upgrade a Willow Feeder or Dry Outhouse - PEP BB greywillow.straw.upgradewillow

This is a badge bit (BB) that is part of the PEP curriculum.  Completing this BB is part of getting the straw badge in Greywater and Willow Feeders.

For this Badge Bit you will upgrade a willow feeder or dry outhouse.

To complete this BB, the minimum requirements are to do one or more of the following:
  install a trombe wall - 14 points
      must exit through the roof properly and include a fly trap above the roof
      cob mass with natural black paint
      glass must have no light filters
  build a truly great urine diverter - 8 points
      Worthy of putting in a book
      plus 5 points in metal working
  build a raised floor - 3 points
  urine diverter and sink drain goes to a mulch pit with a willow tree - 3 points
      (note that adding a sink is covered in the plumbing sand badge)
  oddball projects
      double points

To show you've completed this Badge Bit, you must show proof of the following (as pictures or a video < 2 mins):
 - show before, progress, and after of upgrading a willow feeder or dry outhouse
 - demonstrate that it meets the above requirements for the upgrade(s) you are doing