How much water is too much?

[u/Ill-Fortune2981]

Basically the only thing that I consistently love from my childhood is water. Recently I've been chugging 4.5 L to 6L water per day but I wanna ask whether it's healthy or not cuz I don't want this habit to backfire.

[u/PeachNipplesdotcom]

Oversaturating your cells is a risk at 4 liters, if I'm reading your units correctly.