Home for Irish Setter Lovers Around the World
As clay could set I would 'phone your vet and ask for advice.Humans take a form of clay to settle bad stomachs but not in large quantities.Giving them lots of water might help but I am not sure how you can make your dogs drink!
Found this on a pet advice page:
"Dogs that eat large amounts of cat litter can become sick due to impactions or constipation. Any dog that strains to have a bowel movement, isn't eating or is vomiting should be examined by a veterinarian."
My sincerest thoughts & prayers that your dogs come through this unharmed. Howard's advice is sound, check with your vet!
How is your dog now? It would be nice to know!