Header and Header Trench Construction - High Density PVC Headers
High density PVC headers when properly installed will provide very little chance of leaking due to all of the PVC joints being welded. HDPE headers can be buried in cement or left open in a trench. They can be curved to form the perimeter of the rink, eliminating any chance of frost in the public viewing area. They can be quite expensive to install, but like PVC will not rust or foul over the nipples as readily as steel.