Hyponatermia is why I ask. I tend to drink way more than normal at elevation so that if possible AMS symptoms appear, I can rule out dehydration.
On Whitney in June, IIRC:
*Drank 64 oz between Portal and Outpost (2h 45m)
*At Outpost Camp I consumed 64 oz overnight (~ 9 hours)
*Between Outpost Camp and Trail Camp I drank 48 oz (1h 30m).
*Left Trail Camp with 112 oz of water. This lasted me all the way to the summit and back to Whitney Portal (carried too much obviously). Ran out as we left the trail
After this hike I read something that thought I may be drinking too much. I meant to post a question about it here, but forgot.
Well, since you are taking electrolytes with your water, probably not a big risk of hyponatremia. But... 64 oz is half a gallon -- that's the size of a standard carton of milk!
It is probably not extreme intake, and as long as water is available, you're probably ok. It is pretty sure that you don't NEED that much water. You might try: Cutting back by 1/3, even 1/2. Use Cliff brand shot blocks and other things (I like Everlasting Gobstoppers candy) to keep saliva in the mouth. When climbing, your mouth dries out fast due to the thin dry air. Dry mouth does not always mean you need more water.
Bottom line, though: You're probably not hurting anything drinking that much.
