Can you use PVC pipe for the main water line to a house?

I have worked in many jurisdictions that allowed PVC water service piping, but you need to check with the administrative authority that enforces the Plumbing code (if any) where you live. Yes, most certainly. A recommended pipe would be HDPE Class 16 and size of your choice (i recommend either three quarter inch or one inch pipe for adequate pressure) In most countries, a main line has to be underground, however, as soon as the pipe exists the ground at any given point it has to be non-metallic. As stated above check with your council or municipality regarding any queries regarding what material is allowed and how it must be installed.