I just sent the pics from the two corners I braced in.
If I could have sent the "video" of the walls flexing, you would see that the tops move a little outward. Since, I did these two sides, it does not flex when my daughters make alot of waves.
Not that much of a waste of time, since I'm doing the rocks and wood around the pool over anyway, just adding a couple of 2x4s. Then I might take those wooden supports and add a triangle shapes piece around the supports and paint it white and mount a light onto it.
Just wanted to know if the braces would cause any ill effects to pool.
thanks for your suggestions and comments, much appreciated.
Barry