Ok, hydraulics are not my comfort zone, electrical engineering is, but I can be taught.
I wish I could stick a picture in here. Take a pump feeding a one inch diameter line and off that line is four quarter inch diameter lines, spaced two inches apart.
At the end of each of the four quarter inch lines is a cover which does not allow the total volume of
oil to pass, which the pump is capable of moving.
Now, in my pea brain, if I take a measurement of pressure at any point in that circuit, the pressure would be the same. Only the volume would differ.
I do understand if the pump is having to pump the liquid uphill, the pressure at the source, would be higher due to gravity and would taper off as you approached the high spot in the circuit. What happens if the lines are parallel to the ground, or run downhill, and gravity becomes moot or its effects are negated?