she is most likely finding water somewhere else for example the sink, tub or even outside.

 She could possibly be getting water from another source, but I think most cats do prefer to use their bowl.I think the reason is she does not like water much.There are lots of cats who don't like water(I know a cat called Gysmo who hates it.)Therefore you must give her cat milk instead.You must not give her much ordinary milk, which would make her sick, but you can buy special milk for cats at most pet stores and supermarkets.Give her that and see if she drinks it, which she most likely will.If she still doesn't drink, keep her away from all possible other sources of drinking for a day, and if she only then consumes it then you will know she has another source.If she still refuses, then maybe she has an upset stomach and you will have to bring her to the vet.I hope the Cat milk works though.Good luck!