M.B.
If the ONLY reason she is trying to wean is because of ear infections....I heard that if you raise the baby's head even slightly, it will decrease the amount of infections. I read that the baby's ear canal is not fully developed and doesn't drain properly if the baby is lying on her back drinking. I think they said something like...some of the fluid may get into the ear and cause the infection. I always held my son (propping up his head) and I think he had 1 ear infection in all of his 19 months.
Although it may be time to wean, I think I did it around 11 months, but every baby is different. It did take a while and was a little tough. I tried the water thing also and it didn't work, he would get practically hysterical. But eventually he learned that he just wasn't going to get it any more. I did (and still do) rock with him a little before putting him down. I know it probably isn't the "correct" way of doing things, but they are only little for a short time and I enjoy the quiet time we have together. Before I know it he will be a teenager and not want anything to do with me (ha,ha).