It comes with a disc that turns white so if you are preparing your baby's bath and the disc turns white; it means you have to add more cold water in it. (babieslounge.com)
Add more cold water if necessary to reach desired consistency. (healingsmoothies.com)
Add syrup to tea; add two cups of ice, a little more cold water and then enjoy some really good tea. (theletteredcottage.net)