I have had 500 gallons sit for 4 months in the garage with no issues. I keep a large simplicity pump in it and it is always on. It sits directly in the middle of the container and has a pipe attached to put the water outlet about 1' from the surface. This keeps the water moving and does provide some air exchange. The container is also mostly sealed with only a small vent on one side and that vent has a carbon filter pad zip tied to it lol.
Also, if you every have an emergency, I can load 150 gallons up and be at your house in 1.5 hours max lol.
That's awesome! I really appreciate it.
I will go ahead and set the barrel up too just in case. This will allow about an 80 gallon water change right off the bat should I need to and then wait for the big change to arrive.