Gladons Pool Cove
No matter if you are building a new above ground pool or replacing a pool liner every pool needs Gladon's Pool cove to protect the liner.
The alternative to cove has always been sand but the issues with sand are two fold
Sand does and will wash away. One good rain storm and your cove is gone leaving your pool liner exposed and eventually will rip.
Because sand never dries out it will hold moisture against the inside of your pool wall causing it to prematurely rust.