bring to boil, water, vinegar, salt,and alum. boil for about 2 minutes or until dissolved.
put 1/3 of dill in bottom of crock. add half of garlic, then add half of pickles. repeat once more ending with dill.
pour brine over pickles. if the brine does not cover the pickles make another batch, then pour over pickles to cover.
put a large plate over pickles making sure pikles are covered inbrine. put a heavy weight on plate to help hold it down. ( could use a clean rock or i use a couple of jars filled with water). cover crock with towel. check every couple of days and skim off foam. clean outside of jars and plate. return to crock.
option: you can put dill in the bottom of canning jars wth a garlic clove cut in half. add pickles then cover with brine. can in hot water bath.