how many holes?


Shai Dorsai!
Enjoyed the article and series. Please keep them coming. Very helpful while I am designing (in my head) the setup of a yet to purchased 180 gallon tank. At the moment I'm planning to use the design in the Calfo book.

How about approaching the calculation from the other way... What is the formula to determine how much flow a hole can handle? I want to calculate how much flow a pipe of a given size can handle. Then I could divide my desired overall flow rate by the flowrate from the calculation and then I would know how many overflows I would need.


If I figure it right a 1" pipe can handle 586 gph. This will be very helpful. Thanks for your time.