Prepare your strawberries by removing the tops and roughly slicing them.
Place your strawberries, lemon juice and sugar into a large saucepan with 1 cup of water.
Heat over a medium high heat, stirring your mixture until the sugar has dissolved. Allow the mixture to simmer until the the strawberries are soft and the syrup has turned a reddish pink color.
Use an immersion or stick blender to blend the syrup until it is smooth.
Sieve your liquid into a large bowl or 2 litres drinks pitcher. Place this into the fridge to allow the syrup to cool fully.
When your syrup is fully chilled, add the remaining 1.25 litres (5 cups) of water and stir.
