Um, I hope you don’t mean that literally. A gallon of water is 3.79 liters.

Symptoms of water intoxication tend to start appearing after you consume more than 3 to 4 L of water in a few hours.

Potential symptoms include:

• head pain
• cramping, spasms, or weakness in your muscles
• nausea or vomiting
• drowsiness and fatigue

and then get up 20 minutes later to pee…