But you have already this. There are in my work all the variables. And the equations related are here too. But I can't just take your work because I have some problems to understand what you did with the work for pavwell. I need to understand all because after will do a presentation of my work.
I give you all here.

(Qi-Cd1*alpha1*Math.sqrt(2*g*(H1-H2)))/A1=dH1/dt

(Cd1*alpha1*Math.sqrt(2*g*(H1-H2))-Cd2*alpha2*Math.sqrt(2*g*H2))/A2=dH2/dt

H1 max = 36cm
H2 max = 36cm

A1 = 256 cm2
A2 = 256 cm2

Cd1 = 0.15
Cd2 = 0.15

Alpha1 = 0.0008
Alpha2 = 0.0008

Could you do this representation with a 3.47 of EJS please.
Thank you ever so mutch.