I like that I can mix just what I need. 1/4 cup to a gallon of water and use a handheld sprayer. Kills moss in the lawn in just a few hours, then the work begins taking out the dead stuff. Make sure you mix it in a separate bucket and then strain into the sprayer as there are few undissolved remnants that you don't want clogging your sprayer. Keep the leftover crystals in an airtight container for later use, I find the premixed liquid solutions rusting inside the container once opened.