We used something call CD diet too... I think it was called Hills Prescription Diet (there's a range of different ones, but the CD is specifically for urinary tract probs). The only place we could get it was from the vet and it was pricey, but I found that if we bought the big 4kg bag for about $65 that would last us a month or so. HTH
yep, theres CD - Crystal diet, KD - Kidney diet and UD Urine tract diet (dont think its available in Aus - after what our muss went though that was an option but not available)

I have left Jazz at the vet to get a urine sample.. Vet thinks he has a bug in his bladder.. It's not blocked, he has been peeing and the vet said his bladder was empty.. So just a waiting game til this afternoon.. Hopefully will be fixed with some different antibiotics!
i hope jazz isn't like our muss and has the ability to 'hold on' all day! hopefully they can fix i with AB's. if he still has truble piddleing - ask them todo an Xray to check for stones - thats what happend with muss after they removed a cathiter and he became blocked again within hours. it may be stones (crytals that become infected) thinking of you and Jazz today