Nothing at all. PVC is great for many kinds of sprinkler installations. LawnBelt is simply easier to install and maintain. Because of its flexibility, Lawn Belt can take extreme temperatures and survives even the harshest winters.
LawnBelt is more like a garden hose than a PVC pipe. It is also made from polyethylene plastic and resin and is diamond in shape. The oval opening which the water flows through is equal to about 5/8″ diameter.

