since I only have one tub, there is no water stored in it and you never know when the power will go out here, it doesn't happen often and then we don't have water, in the summer we have the rain barrel and this year I have one in the garage with me that has rain water in it and is replenished with snow at the moment. it is good to water plants with etc as we have high saline here.
We have not had any issues luckily with the well or anything, even when we had little rain and lots of people here, it produced well.
I am supposed to go out for groceries, I need to find my long johns and maybe even layer them, I will look like the michelin man