Works on the same
principle as a thermos bottle. The water within the 5 gallon
removable bucket is insulated on all sides, including the drinking
surface. Therefore, after filling the bucket with ground temperature
water (approximately 50ºF year round), the insulation retains
the inherent heat for several hours (time depends on outside
temperature, initial water temperature, and the volume of water
within the bucket). Generally, during a 0º outside temperature
day minor freezing occur after 6-12 hours, which provides adequate
time for your horse to drink between watering schedules.
The horse simply pushes
the surface float down to drink. The float follows the surface,
maintaining good insulation until all water is gone. Lets you
know how much water your horse is taking during high stress periods.