Tell me that I installed it correctly:
I installed it(Magnefine) inline on the low pressure, 3/8" return line. Now, return, meaning return back to the PS pump, which would be the smaller line, correct? The larger line which connects at the lowest port via a threaded fitting is the exit from pump, meaning high pressure, while the smaller hose which connects to a hard line back to the pump with a hose clamp is the return line, or low pressure, correct?

 

Low pressure line will clamp to the pump where the high pressure line threads into the pump.