Join Date: Mar 2010
Location: Western Pennsylvania
The horses at the barn where I originally started riding constantly had this happen. BO, vet tech boarder, and vet said it was just because of the horses' saliva. Nothing wrong, just the fact that when they drank, their saliva mixed with the water, creating the "sudsy" effect.
I, personally, wouldn't worry too much about it. I know my old barn used all well-water, so it could just be that the well water and saliva did the "sudsy" effect and the normal tap/city water has stuff in it so that it doesn't create the sudsy effect. I can't say that for sure, but I can only speculate with possibilities from the experience I've had.
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