i know the instructions state to mix 1-2oz to a gallon of water, but the thing is a gallon batch is way more than enough for me. i just have 5 snakes and only want to use just half of a spray bottle at the most. does anyone know the proper solution to get a small spray bottle worth of chlorhexadine? is there a mixing guide for this stuff? i don't want to over dilute it nor do i want to use to much, if 1-2oz makes you a gallon then what do i use if i want a few ounces instead of a gallon batch?