(I'm starting this as a new thread because it's not directly related to the pump selection)
This may be a silly question, but which way does your filter face? I have a Pentair CCP420 that I put in last year:
Apologies for the mess, it all needs a good cleaning, and I inherited most of the mess. Anyway, I installed it the way I did because it seemed better to have the drain plug (below the inlet/outlet) accessible and not pointed at the pumps. But when I redo, it would certainly look better with less piping to have the inlet/outlet face the camera. How are most peoples' set up? Is it sufficient to think that when cleaning after I open the air vent the water will drain down to the outlet anyway and be light enough that I can just undo the unions and turn the filter before the final drain? Or was I thinking along the right lines when I installed it facing the way it is now, as stupid as it looks?