Baby is 9mth old, he drinks a lot of water, how much is too much? is it not advisable to drink too much water?

Wetting too much ??: Water is worthwhile part of every diet but can be done to excess. If the kid is wetting a diaper more than every 4 hours he doesn't need more. Some do it as a habit & the volume can be slowly reduced by not offering full bottles.If the kid struggles without, the dr should check him out for a rare kidney concentrating defect.