pump size for 120 gal tank?

perculaclownguy

Geek @ Geektechlive.com
ok so I am thinking of pulling the trigger on a new 120 gallon tank with two built in overflows. based on what i am reading from my research a blue line pump:
30 HD-X 1" MPT does 1110 GPH at zero head.. I will be at approx 3 ' head.

would this pump work fine? woudl i need to add a ball valve to the output or input to restrict flow?

thoughts?
 
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