First brew, making a breakfast stout. I added 3.5 gallons of water to the grains. Then added 1 gallon to boil. Totaling 4.5 gallons. With the boil done, i added the wort to 1.5 gallons of cold water and i only have 3.5 gallons of wort. the recipe was supposed to make 5 gallons, do i add water to reach the 5 gallons? 6? or do i leave it alone and just have 3.5 gallons of beer?