Improve Southern Exposure for Trombe Wall - PEP BB greywillow.sand.improvetrombexpo

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

For this Badge Bit you will improve the southern exposure for the trombe wall  in a willow feeder system.


To complete this BB, the minimum requirements are:
  - must use nontoxic materials where possible

To show you've completed this Badge Bit, you must show proof of the following (as pictures or a video < 2 mins):
 - show the materials and tools for improving the southern exposure for the trombe wall
 - show before, progress, and completion of improving the southern exposure of the trombe wall