Why not, but don’t drink too much water in any 24 h period.

These stupid people who recommend up to 8 litres (2 gal) of water may poison themselves and die an early death.

“The symptoms of water intoxication are general — they can include confusion, disorientation, nausea, and vomiting.

Water intoxication can cause swelling in the brain and become fatal.”

Water intoxication: What happens when you drink too much water?