Were bathrooms with toilets and tubs commonly in use in 1858 England?

Would it be plausible to have an old manor house, a couple hundred years old, that, in 1858 is being used as a boarding/finishing school, have working bathrooms, or would they still be hauling water from the kitchen?

What is it like at a boarding school?

I am really curious as to how a boarding school actually works and not how it always portrayed in books and films, and i would love to find out a typical ‘routine’ of one, preferably here in England. What is it like in dorms, what about leaving school grounds? Bathrooms, kitchens? As much detail as possible would be great!