I change about 100 gallons of water a week from all the tanks I have combined. There is no way I can store that amount of water in buckets/containers, so I also treat water straight from the tap as it goes into the tanks. If there was a more effective way to age water, I would do it. I also got tanks pretty much on each level of the house, so it's not feasible to lug around 5 gallon buckets up and down stairs.
For you guys who age water and have 180 gallon plus tanks, how do you store the water? I'm assuming you have big drums located within reason of the tank?