Place half of the water into a small saucepot with the sugar. Place over medium heat and whisk to combine.
Continue to whisk until the sugar is fully dissolved. You know it is fully dissolved when the mixture becomes crystal clear like water. Take off the heat.
In a large pitcher add the remaining 2 cups of water.
Juice the lemons and strain it if you don’t want any pulp add this to the pitcher. Pour in the sugar water, stir to combine.
Place in the fridge for 2 hours or until chilled. Serve over ice.