My reply is standard for kitties and people. Drink more. "The solution to polution is dilution". Dilute that UTI (sounds like one) and it helps. My vet also suggested a glucosomine condroiton tablet crushed on the food once a day. I bought a kitty drinking fountain, and haven't had a problem with kitty since. Petmate fresh flow:
http://cgi.ebay.com/PETMATE-FRESH-FL...3A1%7C294%3A30