What do you think it's telling of?

I'm not sure if the sites you linked would have been immediately very helpful in my specific case. You know this is for a pool, right?

The first is called "Everyday Uses for PVC Water Pipe" and has some cool ideas like using PVC for Wiimote holders or tridents, but I don't think that's super relevant for this project.

The second is a great forum which I'm already familiar with, but again, the topic is household plumbing and from a brief skim, none of the topics mention pools. I think mine would have been out of place.

I appreciate you trying to help!