Hello,
I feel like that was me writing this post. My son is exactly the same! He is 9 months old and will not drink a thing!
I discussed it with the HV at his 9 month check and on her advice have started him on some juice rather than just water and I just persevere all day offering him sips all of the time.
He has just started to take really small sips and will now drink approx 50mls throughout the whole day! He does seem to be improving so I think persistence is key but I will be interested to see if anyone else has any tips?