Prevent Stock Tank From Freezing without Electricity - PEP BB animal.straw.tank

This is a badge bit (BB) that is part of the PEP curriculum.  Completing this BB is part of getting the straw badge in Animal Care.

For this BB, you will set up a stock tank that won't freeze in the winter without electricity! This  BB only applies in climates where freezing is a routine issue!

Related Information:
- Build a Solar Stock Tank
- Travis Johnson's culvert geothermal system


(source: Mother Earth News)

Minimum requirements:
     - must keep a stock tank from freezing without electricity
     - must be in a climate where freezing stock tanks is a concern
     - no plastic, treated lumber, or toxic gick

To document your completion, provide proof of the following as pics or video (less than two minutes):
     - materials to build stock tank
     - progress of building stock tank and system to prevent freezing
     - demonstrate stock tank does not freeze in the middle of winter without electricity