Take a regular glass of any size you want, add some Ice in it, try to fill the glass with the ice. Then turn your sink water on (use the cold handle) and fill the glass up with the water. If you prefer bottled water that will work fine too, but make sure your glass is full of ice. No compromising on the ice, the glass must be full.
Then sit back and enjoy. lol
Then sit back and enjoy. lol