PVC is used for most incoming supply lines and mains, also many houses use CPVC pipes for hot and cold water in the house. (CPVC is Chlorinated PVC pipe, it can

PVC is used for most incoming supply lines and mains, also many houses use CPVC pipes for hot and cold water in the house. (CPVC is Chlorinated PVC pipe, it can withstand hot water, it's a light yellow/orange in color compared to PVC which is white, and it's sized like copper pipe wheras PVC is sized like iron pipe.