Do you have a mister fan? we don’t use coolers but can get some pretty awesome hair going this way. You can probably modify it some to fit your needs and still get a result
Bring them in first thing in the morning, rinse them and brush until they are dry with a rice root brush. Tie them under fans (can you use your shed??) in the evening, rinse them until they are COOL (skin is cool to the touch) and turn them out. Don’t turn out before dark.
Please note that excessive shampoos and hair care products can actually hinder the hair growth, as oils make them hot and shampoos can strip hair oils and make it dry and brittle.
Idk what Idaho weather is like, but we are not rinsing calves in this weather
![Rolling on the floor laughing :rofl: 🤣](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f923.png)
Good luck!!