The deaerator was being operated at 7 psig (233[degrees]F); however, it was installed on the roof of the boiler building with a pump suction elevation head
of 45 feet.
They determined that velocity head is insignificant and that in the saturated zone, pressure head is equal to 0, leaving elevation head
as the dominant factor determining groundwater head.
Using quantity-vs-head curves from pump documentation, measured slurry density, real elevation head
, length and diameter of pipes, number and size of valves etc.