Good afternoon. I bought the Esther Williams "Millenium" pool (12x21) and am sinking it about half in the ground. I have the hole, and the side supports completed but need to attach the "arcs". In the guide there is an adapter that gets installed (I did that) but did not follow the guide because it won't align the arc to the straight wall. My question is.. when I attach the Arc rails to the Arc rail adapter I need to know where the short pieces go (the ones with the holes).. are they the ones that attach to the sides of the pool, or form the ends of the arcs.. also my arcs do not sit nicely on the ground and are bent severly, can I put up a post and sort of tie it down plumb? Anyone ever install one of these let me know. I can also post pix.

thanks!