Try to drink anywhere from 64 to 96 ounces of water a day.
It might sound like a lot and, of course, you want to spread the consumption of it out over the day. Drinking water does burn calories though and is a great way to speed up your metabolism. https://www.webwiki.ch/melissafarm.gr/%CE%A0%CF%81%CE%BF%CF%8A%CF%8C%CE%BD/meli-antheon-930gr/