Seriously that was just gross! You actually allow your big dog to use the toilet as a waterbowl

How about this~the next time you need to quench your thirst I suggest you get right next to where your dogs get their water. I don't see how the bowl could be clean since their is brown funk on the area between the lid and the seat. Where is the puke icon when I need to!
May I please suggest the next trip to your local Walmart you purchase one of these instead
Walmart.com: Petmate Le Bistro Microban Autmatic Pet Water Dish in White: Dogs
This way all of your animals will have access to clean, sanitary and free water without using the toilet out of necessity!