Hey guys, I'm re-doing my solar heating since I neglected to use a VRV the first go-around and my PVC pipes collapsed in on themselves in the Arizona heat. Here is a high-quality schematic of what my new setup will probably look like. Which colored "star" is the correct location for the VRV? Or is there a better place that I didn't even guess, haha? Thanks!
FYI, I'm planning to use a 3/4" VRV that I found online. It is not the $40 Heliocol one, it's some $15 green one. If there is a "recommended" VRV, please let me know. It gets crazy hot here in AZ (115 degrees is not uncommon), so I realize (now) that not using a VRV the first time was dumb.

FYI, I'm planning to use a 3/4" VRV that I found online. It is not the $40 Heliocol one, it's some $15 green one. If there is a "recommended" VRV, please let me know. It gets crazy hot here in AZ (115 degrees is not uncommon), so I realize (now) that not using a VRV the first time was dumb.
