For the amount of water used, the cost of building the toilet with astroturf and tubing, and the effort to create a whole area in your house, wouldn’t it be better just to take your dog outside to pee on the grass?
Yes and No. not everybody has a back or front yard or the time to come back running at break time from work to take out the dog/s to the grass so they can handle their business. This is convenient not for every dog owner… so yes and no. And I appreciate your feed back!