Sorry about the thread title. I got called away from the computer while working on the post and it came out "My First Time" instead of "My first time using flex PVC."
I wish there was some way to edit thread titles or delete threads and start over.
Anyway...
I am dry fitting the plumbing for a pool heater and I have questions. I want to use a bit of flexible pipe between the pad that the pump and filter sit on and the pad for the heat pump pool heater. Just enough to account for settling, etc.
Another issue is the hard plumbing. In the photo below, do I need a ball valve at "C" since I have a diverter at "A" and a check valve at "B"? It doesn't seem like I should, but I'm not sure what best practices are here.
