We've been using the brand..LIXIT for about 2-1/2 years now without a problem. I got the bigger sized bottle with the larger nozzle and I have had no problems. Izzy is 3.5# and Cosmo is 12# Biewer. They drink from both the water bottle and bowl. (I have a bowl on our second floor so when they don't feel like going downstairs for the water bottle they will drink from the bowl). So so far, so good for us.
