Since I am replacing my equipment and above ground plumbing, I have to opportunity to change somethings about the layout. It is conceptually easier for me to reconstruct the current approach, but if I can improve it, I'd rather. Of the options suggested so far, two appear to have improvement potential:
1) Turn the pump perpendicular to the feeding lines and rotate the filter accordingly.
This would simplify the plumbing pump->filter with only 1 90 degree bend, but adds a 90 on the intake
2) Keep the layout essentially the same, but replace the 3 90's in the pump->filter line with 1 90, and 1 45; angling the line from the top of the pump to the multiport
Would seem to improve flow to the filter albeit not that much, but would look a bit funky.
Also, since this effort involves replacing the valves, where practical, I'm thinking valves on the vertical plane ought have their handles on the inner (equipment) side of the plumbing rather than the outer (lawn guy) side. true?