Hi, this is my first post. I have a 9 year old male Tabby who lived most of his life with constant urinary tract infections. He had an operation 2 years ago that eliminated any chance of ever getting another one. I recently took him off the CD Urinary Tract formula dry food and he is now eating Pro-Plan and Science Diet Hairball formula. Since the change in food, the size of his pees have more than doubled. I am amazed every time I scoop - - I'm almost afraid to go near the litter box! Does anyone have any firsthand knowledge with this unusual phenomenon?