One year old drinks a lot of water?

So my nearly one year old girl loves her solid foods and has even chosen to reduce her milk down by not drinking as much but she drinks so much water if given the chance,

She will drink a good litre in a day, sometimes more and obviously because she drinks loads her nappies are always so full...

I didnt know if this is the norm or if it's something I should take her to the docs for 🤷‍♀️