Why?
I plumbed my garage with 3/4" PVC nearly 20 years ago and it works fine. Did two drops on each wall plus to overhead drops on either side of my Handy Lift at a cost of only a few bucks. The only pricey part was the QD couplings.
I’ve been told that PVC pressure ratings are for fluid rather than gases. Also when struck, PVC pipe can burst. Creating shrapnel propelled by the air pressure
