My male cat had the exact same problem that Lisa Fishman mentioned above. (My vet called it "crystals" in his urine too.) Anyway, along with suggesting that we change to a urinary tract health food (we also use Purina ONE), the vet said that it is imperative that the cat always have lots of fresh water available. He said that sometimes water in a water bowl can taste too stale to a cat and then they just won't drink it. So, mine is now allowed to drink directly from the bathroom faucet, even though my husband thinks it's gross.
Amanda Dyer
Delta Gamma
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