The tank already started experiencing structural problems! My wife has an engineering background and I am a engineer, though of the software variety. You'd think we could get this right. Well, come to find out we did not properly account for the horizontal force of 500 gallons of water. Quite amazing. I had to do some rigging, but I got it mostly secure after draining some water and making some additions. I'm not explaining much because I just have this in here for posterity purposes. It isn't how you build a tank!