I usually keep drinking at least 5-6 litres a day just in form of plain water . Its very hot where I live so naturally I loose much of it in sweat and given that I supplement protein shakes and creatine to prevent any damage to kidneys I sip 1/2 litre water every hour. I still find my pee a little darker than I'd want it to be but then again I got bloodwork done recently and it showed everything looks good so I think I found my balance.