Thanks for the replies. She does have water but only when she eats - and I don't think she actually gets much if any, more chews on the spout. She is definately efficient, she only has one side (always has) but has started feeding for longer. She used to be done in 5-10 mins but now feeds for about 15.

I'm not worried, just wanting to get a feel for what other bubs have done/ are doing.