What is the common method for connecting poly tubing in irrigation systems?

The common method for connecting poly tubing in irrigation systems involves the use of barbed fittings. These fittings feature protruding ridges that grip the inside of the poly tubing, providing a secure connection as the tubing is pushed onto the barbs. This design allows for a tight fit that reduces the risk of leaks under pressure. Barbed fittings are favored in irrigation systems because they facilitate quick assembly and disassembly, making it easier to alter or repair the system as needed.

In contrast, other methods, such as screw fittings, welded joints, and compression fittings, may not be as effective or practical for poly tubing specifically. Screw fittings typically require threaded connections, which are not suited for flexible tubing. Welded joints involve permanently bonding materials, which is less flexible and not ideal for modifications in irrigation setups. Compression fittings can work with poly tubing but generally require more precise alignment and are not as common as barbed fittings for ease of installation and flexibility within irrigation systems.