This may be helpful for those of you making your dilutions:
1 US fluid ounce = 6 US teaspoons
I do 1/4 ounce to 5 quarts which is 1.5 teaspoons (1/2 tablespoon) to 5 quarts. It works well for me because the pot I put it in when I make it is 5 quarts
I also use the spray bottle method almost exclusively except for items like hoses and bottle caps. Most of my stuff gets sprayed and some gets soaked. I always take my largest cookie sheet to put my hydrometer, thermometer, etc... on and spray that stuff. That way, the item is sanitized and so is what it's sitting on.