dual overflow question

[MARCOANTONIOJR]

i have a 120 gallon 60 inch by 18 by 26 high perfecto dual overflow tank .
if my sump was empty and i filled up my tank to the top how many gallons would go into my sump?

im just curious,i havent set anything up yet so i cant add water and do this.

 

[junglebase]

Here is just a guess: If your tank's height is 26" and if the teeth of your overflows are 1" high, the amount of water going to your sump will be 1/26 (.03846) of 120 gallons or roughly 4.615 gallons. Now if it is 1.5" high then it will be 1.5/26 (.057692) of 120 gallons or 6.92304 gallons. These numbers are then added to the estimated volume of water that the overflow boxes will hold... (i completely forgot about that..)

 

[danfish]

i have an aga 120 48x24x24, i dont know if the overflow is the same as ur perfecto. but my 120 overflows about 10 gals b4 it stops.