I could get 2 battery powered back ups. I could probably only run 2 lines off of each. Hopefully my power doesn't go out for longer than an hour tops. There aren't many disastrous storms that come through here. Probably just pull the lid up if goes out. My main concern is that the bubblewands won't properly aerate that much nutrient solution. I have yet to see a large scale DWC that isn't the buckets. Maybe there is a drawback to using so much solution (aside from the back breaking effort of moving the containers). I think I'll pick up 4 containers and switch the "reservoir" out. I'll should ahead and get the bigger 2.3 cu ft. pump. It's on sale at Dr. Foster and Smith for $56. 6 48" bubble wands should be enough the bottom of the container is only 16" wide. BTW, I also think I'll use the Higromite for medium. With the lip flipped over and using fairly deep net pots, I think the container will hold about 25 and 30 gallons of solution per container. 1.15 cfm of air would aerate all the water every 4 and a half to five minutes, so one would do it every two and a half (based on my shoddy math). That has to be in an acceptable range. Maybe I'll start with one container and put all the bubblewands in it to see if the idea is possible. Then try to add the second. Oh well, that's enough for now. Anybody with similar ideas or even better, experience, please stop in and enlighten the noobs.