Improve or Repair the Ventilation System of a Willow Feeder - PEP BB greywillow.sand.improvevent

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 or repair the ventilation system of 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 tools and materials for improving or repairing the ventilation system
 - show before, progress, and after of improving or repairing the ventilation system of a willow feeder