I live in the high desert and weigh 313 pounds. According to water calculators that means I should be drinking 5.2 liters of water a day! I'm trying, I really am, but I hate it. I am in the bathroom all day and wake up 2 - 3 times a night to go.
I'm not a big fan of water anyway. I put stevita in it to make it a little more palatable, but it still is not fun drinking all that water.
Before this I drank nothing but Diet Coke. I would maybe have one - two glasses of water a month. Otherwise it was all Diet Coke all the time. I am now down to 2 glasses of Diet Coke a day and up to 4 liters of water.