New here, but have gone through just about every post.
We are looking at several 18' 52" pools on the internet to install ourselves. Most of which are resin, but one that is AL. The resin pools seem to say they have 8" seats & uprights and the AL pool says it has a 6" seat.
I was curious to the flex of the AL pool versus the resin one and whether there are advantages of one versus the other. We live near the bay so I think a strictly steel or galv pool is out.