Hi Guys, I have this calculation I need to find H. – Rephrased question!

Q = CdA √2GH

Q= 163.5 m3/h

Cd = 0.5

A = ∏D2/4 = (∏ x 235.4²)/4 = 43632.39

I need to find the Hight...

So i got:

163.5m³h = 0.5* (πD2/4) √(2 x 9.8 x H)

I need to find H ... Please help with complete calculation