Reduce heat to maintain a gentle boil. If you want a flavorful, safe pickle, do not dilute the vinegar and follow an approved recommended method. Salt substitutes may make the pickles bitter. The compounds that keep table salt free flowing will make the solution cloudy. Use canning or pickling salt.
Most people use three-fourths to one cup salt per gallon of pickling solution.
You can add small amounts of sugar to reduce the tartness, but this is not common in most dill pickle recipes.