Vacuum system hydraulic calculation

[hswang2]

I tried to do the condenser vacuum hydraulic check, but I don’t how to start it.
It seems very dumb cause I know this similar topic has discuss a lot in the forum.
Please bear with me.
My goal is to (1.) calculate the min. elevation of the reactor condenser?
(2) calculate the height of flooding
I know the difference in elevation between the Condenser and the hot well must be exceed the static head of the water in the barometric leg, and also confessor must be
Placed at a height that is sufficient to prevent flooding

The head from vaccum pressure is P1~-1 barg
P1*10.2/SG = (-10 m) . so the min elevation of condenser may be -10 m ?
Please give me some suggestion and guide.

Thank you very much for your kindly help

 

[hswang2]

I make a simple calculation for this hydraulic question, but not sure that is correct or not.
(pls see the attachemnt )

Thank you so much.