Hi, IMHO unless you are dry camping, hualing a ton of fresh water around is very wasteful! Water weighs a lot, about 7.5 lbs. per gallon. Here is what I do, from home, put between 5 -7 gallons, to flush the toilet and wash hands on the way to where you are going. At the various stops along the way, campsites etc, check to see if you need to add. For drinking? Bottled water works great, you can use it for cooking etc also, a good cup of coffee or tea starts with good water, you can purchase bottled water almost anywhere. You can go a long way on the 5-7 gallons if you watch your use!