Frozen Water System Ideas.

[Mouthpear]

My first winter with birds is quickly approaching and I'm going to be keeping mine in a detached garage. We are using a gravity feed watering system. Has anyone had any luck with adding propylene glycol to your bird's water? I'm also open to any other ideas.

The only direct research I can find is from this article which i can't find an actual copy of - Farshid, A.A., Rajan, A., Nair, M.K., Ultrastructural pathology of the lymphoid organs in Japanese quail embryos in experimental ochratoxicosis, Indian Veterinary Journal

Did you find your solution/answer? What did you end up doing? Update?