We have never given our SWCAH daughter salt solution, even as a baby.  I would think that now that your child is turning 1 next week she is starting to eat a lot more food that we would eat and a lot of this food has a lot of salt in it naturally.   I do not add extra salt to my daughter’s food and she doesn’t crave salt either.   She has .05 mg Florinef each day and this is obviously enough, together with the natural salt in foods.  According to our Endo there are varying degrees of "salt wasting" so the situation will vary from one CAH child to another.  Always check with your Endo about these types of things as well.