Since we are talking plumbing tests I'd love to get your take on this:
I just had a rough inspection where about half the pipes felt hollow so I questioned the plumber. "Yeah there's no water in it but it's still under test because there's plenty of pressure." I asked how I'm supposed to know if there's a leak or not. "If there was a leak the air would be replaced by water and the leak would show up." I asked how I know there's not a small leak. "It's been on test since last night." I asked how I'm supposed to know that. I explained that I have 30 minutes (not counting drive time) to check all of the rough framing, plumbing, and electrical on two houses and that I didn't have time to argue the fine points of plumbing test. I asked him to take the caps off of the vent stacks and refill it, then when the water starts to over-flow at the lower vents cap them off and move up till its coming out the highest vent then leave it on test. He blew up on me "We've been doing it this way for 30 years..." and "the county doesn't make us do this..." I calmly explained that other plumbers here do this and don't complain. He yelled at me some more as he got in his truck and peeled out of the jobsite. I wrote a correction notice and moved on.
Am I being too strict or is he being lazy?