No too much is not bad for you because water is totaly natural and is very cleansing, thats why most scientist say have 8 cups off water a day or maybe 2 liters.

Water can clean out your liver and lungs, but don't try to overdrink because our body already has water in it so thats why you have you have to drink 8 cups or 2 liter.

Peace. Chou. Goodbye