What is the expected outcome of using barbed fittings for connecting poly tubing?

Using barbed fittings to connect poly tubing is expected to yield a secure connection that effectively minimizes the chance of leaks. The design of barbed fittings allows them to grip the inner walls of the poly tubing tightly as they are inserted. This creates a mechanical lock that is resistant to both pull-out forces and pressure changes, contributing to a robust seal.

Additionally, the barbs on the fitting create friction against the poly tubing, which enhances the reliability of the connection over time, especially in environments where movement or vibration may occur, which could otherwise lead to loosening or leakage at the joint.

While other options like flexibility, ease of installation, and expedited water flow have their merits, they don't capture the primary advantage of barbed fittings. The primary design goal is to ensure a reliable and leak-free connection, which is especially critical in irrigation systems where water management is essential. Hence, the emphasis on leak prevention distinguishes the expected outcome of using barbed fittings in this context.