Lexi has a severe UTI. She is currently on a mixture of Orijen and Serengetti. I know that one is UTI friendly so I don't know what is causing her PH to be at a 7.0. The vet gave me prescription Hill's diet and I'm not too keen on that, but will keep her on it until I can find something else that WILL lower her PH. Can any one else suggest other UTI friendly dry cat food? I would appreciate both grain free and grain brands that are SAFE. Thanks!