Above Ground Pool Installation Wall Collapse?

Question

We are trying to install an above ground pool. We got the alumimum walls installed in the track, and the support posts attached. When we tried to install the liner, the walls collapsed. We set up the walls a second time, but had to leave it overnight without installing the liner. The walls collapsed again, even without the weight of the liner. What could we be missing that is causing the walls to be so fragile? We are quite sure the ground and the posts and channels are level.

Answer 1

Was there a cap to put around the top?  or does it go on after the liner.

Answer 2

Yea the cap goes on after the liner.

Get some brick mason's string blocks.  Drive stakes around the perimeter of your pool, about five or six feet away.  Hook the string blocks over the top of the side of your pool, and tie the string to the stake.  This should keep enough outward pressure on the wall, and liner, to support it until you add water.  Move them out of the way, as you go around with the liner, and replace them as you move on.

Answer 3

Sounds like you are missing the cap.

You shouldn't put up the entire wall prior to the liner. Do about 1/4, then add the liner. Then continue this way until done. At each post add the liner & cap.

OR.... Get a few more people to steady the wall as 1 or 2 install the liner