Above ground pools have a wide variety of designs available – although most are either oval or round in shape. A few rectangular options are available but at a much higher cost. Options you can choose from include overall size, depth and material.If you need an insulating foam sealant for cracks, holes and gaps that are wider than a half-inch, Dow makes this same product for larger-scale home improvement tasks. No matter what size, Dow has you covered.This article will cover the basics about above-ground swimming pools and will hopefully answer some of your questions so you can narrow down your search for the perfect family oasis.Continue doing this until you have all four walls covered. Then let the room dry. The compound will turn white as it dries, if you see any gray spots, give it more time. Once it’s dried, you can paint the walls.