I’m repeating what’s already been said but here’s my experience: There probably is something wrong with the bottle…that was part of the reason I switched to crocks for both of mine. Oh wait, I forgot, the main reason I had to switch was because they refused to have it any other way..haha
Oreo was never good at the water bottle, but lasted for a while, I offered both crock and bottle after her spay to make it easy for her to drink…once she went to the crock, she never looked back. When I got Blu I gave him both, but being 2 months old he liked knocking his bowl over or jumping through it…so the bottle for him.. He was an excellent bottle drinker, quite amusing to listen to, he was insanely fast and drank so much more than I remembered Oreo drinking. After his neuter I did the same as with Oreo and now he only will drink from the crock. I think they may have given him a crock at the vet so he got a taste of the easier way to drink and decided he liked it better.
As long as he’s drinking, that’s the most important…