One of the outside cats (maybe ours, maybe not) decided to spray the horses' water trough. We noticed our horses were snorting at the water and refusing to drink. So we emptied it and filled it back up, and added juice (which they love). Still a no-go. We filled a different trough and moved it. They still will not drink from it. We have been giving them buckets, but mom and I both work and they will not get enough water this way - especially since they like to play with the buckets. We are pretty stressed. Does anyone have any ideas?