bogolove, I would research that Waltham some more. Heres the first five ingredients of each type.
Canned: water,meat by-products,chicken by products,animal fat preserved with bha/bht, natural flavors 8O
The dry: chicken meal,rice,corn glutten meal,ground corn,chicken fat
I would suggest switching to an all canned diet of a premium food. I free fed Iams dry untill my 3yr. old male had a urinary blockage from crystals.
Since finding this site, and doing nutrional research on the web, I switched to an all canned food diet of Wellness, and haven't had a problem since.
Meat is an natural urine acidifier, & combined with the water content keeps the urine concentration diluted. Go to
www.littlebigcat.com/index.php?action=publications and read through the library for more info.
Aaron