Quote:
Originally Posted by cableguy0
Keep in mind a single 3 inch pipe flows more than 2 2.25 pipes.
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*Straight pipe can/will flow about 115cfm per square inch of area on the cross section of the pipe.
a 2.25" pipe would flow an est 408cfm per pipe, so leaving out stuff like xpipes, thats ~816cfm of flow.
A 3" pipe by the same math would be 747cfm.
*the constant and equation were made by people smarter than myself.