My design on this was a little out of the ordinary. There was a decent slope on the property, and the homeowner wanted the tank to be installed up-slope from his home. The home has a full 9' walkout basement. I normally don't like to do this, but, hey, there is always a solution. This meant that the hole had to be around 16' deep. BIG hole. I chose a 2000 gal AWS tank for this design. The rinktop tank with rounded corners is a excellent design for deep burial like this. I was onsite to supervise most of the install. The hole was dug and prepared in the morning, and my good friend Dion from Alberta Wilbert showed up on-time in the afternoon with the tank and dropped it into the hole.