Making the Pool Round

We are in the process of setting up a used 18' round pool. We put down landscaping blocks to set the ring on & put up the side walls but we're having problems getting it perfectly round. When we measure across one way it will be 18’ 1 1/2" another way will be 17' 10" & so on. We've been trying to slide it around to make it even but are having a hard time getting it just right. How important is it to have it perfectly round?
Thanks



Hi. There are two really important things to remember about building a round above ground pool. They must be perfectly level and perfectly round.

The best way to make a pool round is to work off a center point and use the radius measurement. I always do this before the wall is installed. Actually, I take a tape measure around with me as I am connecting the bottom rails and set them all at the 9’ mark, for an 18’ pool.

All 18’ pools will not have a radius of 9’ exact. Some may be 9’ 1” while others are 8’ 11”. It makes no difference what the radius is as long at it is the same all the way around. You need to keep working it until it is.