Struggling to find something to give my 9 month old (but 7 month corrected, she was premature) will drink! I've tried just cooled boiled water but she won't take it, I've tried sugar free squash, she didn't like that either! She enjoys watermelon, so I've been sieving watermelon and catching the juice to dilute in cooled boiled water and she seems to enjoy this! Is this a suitable drink? What other fruits would be good to do this with?