Attached are 45 day trends of the pressure out from the pumps and the control drive to the motor.  After seeing the dips very evident in the End control drives, I replaced the CS pump output for 1 2 & 3, which are as flat as PS4, with the outside air temp.  Very clear, the change in temp drives the pumps' need for speed.

Still much noisier than the others but the EX pressure cleaned itself up for some unknown reason a week ago...

And like clock work, the EndY daily and weekly glitches are still present.  Anybody?