Right, the fitting is made longer than the one on my truck. The one the guy uses in the video is longer, this allows you to butt the fittings hub to hub without it being a crown vent.I think that was the dry fit. He squeezed them pretty tight together when he did the final fitting IIRC. I could be wrong though. I just don't like how short it is. LOL.
I agree, I like leaving room between fittings too if it’s possible. It’s good practice.Ahh. Ok. I personally would want more space in between the hubs because I like to leave room for repairs if anything leaks. But, that is usually more of a problem with water supply lines (like the PVC crap in my well shed).
Not a picture, but a video of a plumbing fail & the guy installing it doesn't seem to know it.
You may be able to see one of the fails from the still image for the video.
I didn't see any primer before he glued.