The ICON Fresh Water Tank WT2472 is made from rotationally molded polyethylene, a durable and chemical-resistant material commonly used for potable water tanks. Due to polyethylene's low surface energy, adhesives and chemical bonding methods are generally ineffective and not recommended. The unthreaded filler boss pipe is designed for mechanical connections, with barbed fittings secured by hose clamps being the preferred option. This method provides a reliable, leak-free seal without the need for adhesives. When installing, ensure the barbed fitting matches the pipe diameter closely and use quality hose clamps for a secure fit. Avoid attempting to bond fittings chemically to the polyethylene surface to maintain tank integrity and prevent leaks.