Water bottle question

I just bought some new bottles, they have bigger drinking tips with bigger balls. The first couple days my rodents doesn't seem to be able to drink out of them. Then I pulled the round metal tube out and found that there are 3 balls. I took out one and then some were ok, but others still couldn't drink. So I took out another ball for those. Now the water comes out too easily and wet the bedding.

Anyone has similar experience? Any advise?

On a more technical side, does bigger tube give less pressure? So the ball is harder to be pushed to the end?

Thanks for any advise.

Sounds like you got the type that are for kenneled dogs or other larger mammals.

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Originally Posted by Chandler reptiles

Sounds like you got the type that are for kenneled dogs or other larger mammals.

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So they cannot be used by rodents?

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Originally Posted by amon

So they cannot be used by rodents?

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Most require to much pressure to operate by rats.