Quote:
Originally Posted by Mike Pearson
There is also schedule 80 pvc pipe available. It is quite a bit thicker and has a higher pressure rating. This is available at most plumbing supply dealers. Schedule 80 pvc is a dark gray color. This would be a great choice for higher pressure applications.
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We repiped our body shop about 10 years ago with schedule 80 pvc and had only one minor issue with a leak at a joint that was not primered before it was glued.
Shop line pressure is 150#.
I would never take a chance on schedule 40 using over 90 #
My own shop is piped in galvanized pipe and I've had no issues with rust,but I have several drop legs in the system with drains on them to eliminate condensation in the system.