Does anyone else have this problem (or had) and know how to fix it, or where it's coming from, how to clean it, etc.?
I usually find a bit of the sand like stuff in the cups or if a light bowl on the lower rack overturned and filled with water, it would also be in the water.
I was lunging my horse on Saturday and noticed she looked a little off, and lucky for me the farrier was coming on Monday, and I had him look at her hoof. He said he didn't notice anything too bad (abscesses, thrush, etc.) but said it could very possibly be bruising from all the ice that we've...