From my experience I say never every drink excess water. During my delusional plant based high fruit days I consumed large amounts of still water because I thought I will detox it all out. I´d say I drank 3-4 liters daily, possibly more, even though I was not thirsty. With that I ate lots of carbs from fruits, fibrous vegetables and green juices, plus fake vegan sausages and very little meat and little to no bread. The result was extreme water retention and extreme weight fluctuations. I measured my weight religiously every morning and evening for years. In the morning I was thin and underweight and put on 59-60 kg on the scale. In the evening I had 69-70 kg. So 9-10 kg + from morning till evening from all the water, fruits and veggies.
My belly was huge, the candida/parasites multiplied insanely, my brain was dead and often I barely made it home from work. Terrible times. All that water plus the wrong diet messed up my stomach acid so badly, that I was not able to digest any food thereafter. Stool showed lots of undigested food and eating beef was almost impossible due to the lack of stomach acid. All that excess vitamin a from tomato sauce and carrots also fucked up my fat digestion among other things.
Drinking too much water is the dumbest thing you can do. Once you lower your stomach acid to the point where critters make themselves feel at home, your fucked. They make sure that the PH remains high so they are able to survive. Thanks to that I had to completely stop drinking still water and can now only consume proper carbonated mineral water. Recently did a 5 day water fast but during that time I was constantly consuming something in my stomach, even though I did not eat. That something was certainly candida/critters. Bravo to myself to listen to plant based retards years ago. Drinking excess water is a recipe for disaster. Drink water when your thirsty, not more is my experience. I can very much agree with the statement of Dr. Oren. The push for drinking water constantly is as retarded as the food pyramid.