reccomended is 10ml every 10-20 min, so 60-30 mls and hour.

is her urine very concentrated and dark? if so that is a sign of dehydration.

when you open her mouth is her toung pink and moist? if so then she still has enough hydration.

her eyes will also go dry and you can tell this by pulling bottom lid down to expose the inside if moist and pink all ok.

i have been in a simillar situation with my DD, we took her in and they said just get as much in as you can.

have you tried her fav juice watered down maybe? i know you have prob tried everything and feels like your running around in circles..

is she one whjo drinks the bath water? i know my DD would do that put her head to the side and suck her washer etc i know sounds grose but her its fluids and if its clean water with no soap, its ok. it could just be the temp of teh water is soothing i dont know..