Hi,
I had a boxer that drank more water than any dog I have ever had, and peed a lot too. She didn't have diabetes or any other discernable health problem that would cause excessive thirst and she lived to be pretty old for a boxer. It was just normal for her. But drinking that much water should be a cause for concern and I think your dog should be seen by a vet. It might be nothing but you won't know until the vet runs some tests.
Good luck!
Starr
I had a boxer that drank more water than any dog I have ever had, and peed a lot too. She didn't have diabetes or any other discernable health problem that would cause excessive thirst and she lived to be pretty old for a boxer. It was just normal for her. But drinking that much water should be a cause for concern and I think your dog should be seen by a vet. It might be nothing but you won't know until the vet runs some tests.
Good luck!
Starr