I am making an Oktoberfest tomorrow using Distilled water with chemistry salts to match Munichs water profile but i was goin to use my municipal water with Lactic acid to get pH to 6.5 for sparge water. The water profile chemistry for my Mash vs municipal water will be different. Should i make my sparge water to the profile of my Mash water or would using my municipal water with lactic acid be fine. I dont have an RO unit so i would hqve to buy 18 gallons of distilled water at the supermarket which i dont want to do. Thanks in advance.