my 18mnth old ds drinks about 9cups of drink a day. he eats plenty so its not hunger he must just be a thirsty baby. i have mentioned it to hv but she seems to think its ok. i just never mentioned to hv its not water he drinks its sugarfree cordial that is very diluted. about 1tsp to each cup. will this still rot his teeth and if so does anyone have any alternative suggestions cos he will not drink water. he will drink flavoured water but i am not sure if this is as bad as cordial. any wise mothers out there.