Mix water, pickling salt and vinegar in a sauce pan. Bring to a boil and boil for five minutes.Set to the side and cool for about 5 minutes, or until luke warm.In a large gallon sized jar, place dill, cut onion, peeled garlic and cucumbers. Place cucumber last, and fill the jar.Pour warm mixture into the jar and put the lid on.Set jar outside in the sun for 3 days.After three days, open the jar and test a pickle. If it is to your liking, place the jar in the fridge. This will keep the pickles crunchy.