Channeling proper pipeline direction becomes easier with the usage of PVC pipes. They are easy to maintain and are cheaper than other pipes. The pipes are available in various sizes starting from 1.25 inches to 5 inches. The versatility makes sure that the entire drip irrigation pipeline system can be installed using the PVC pipes. 
Pvc Pipe Advantages:
PVC water pipes preserve drinking water quality due to their high degree of inertness and resistance to corrosion. PVC pipes are therefore free from bio-film contamination that can be a breeding ground for bacteria.
In terms of irrigation projects, the main advantage offered by both PVC and HDPE piping is that it has a higher life expectancy than traditional solutions such as iron, copper, and steel.
Poly is a flexible plastic pipe made of polyethylene resin. Main advantages are flexible, durable and lightweight. Because they bend easily, they adapt well to the contours of the land and are commonly used in low-pressure applications such as irrigation systems.