You mean make the T into a "Tree" so that all three panels get an input feed and all three go to output. This can be done, just will require a longer feed from the "Tree" to the third panel and longer output from Left bottom panel to output "Tree" - all due to layout and space limitations. White PVC schedule 40? or the gray PVC?

This setup could end up adding a 4th panel at some point if we don't get enough warm water from this, but I think with a normal summer, we should be able to do fine with the three panels.

The pool prep, planning and the maintc is my "baby" - the hubby just helps with the grunt work and relaxes in it when its ready. Thanks - getting this straight in my head by running it past others really helps.