From 2003-2005, the average water use for golf course irrigation in the U.S. was estimated to be 2,312,701 acrefeet per year. That equates to approximately 2.08 billion gallons of water per day for golf course irrigation in the U.S.2.08 billion gallons of water? How much is that?
Based on a nominal depth of 2 meters, (an Olympic-size swimming pool) has ... 660,000 US gallons
2,080,000,000 divided by 660,000 is 3152.
3152 Olympic swimming pools worth of water every day for golf courses... ten years ago.