Thread: maximum flow through a 1.5" herbie
View Single Post
  #5  
Old 03-20-2008, 11:41 PM
Zylumn Zylumn is offline
Member
  
Join Date: Mar 2007
Location: Calgary , NW
Posts: 274
Zylumn is on a distinguished road
Default
Using the Drain Hole and Overflow size calculator on RC a 1.5" drain hole at 20" head (as per what Untamed was explaining) it will drain at 1325gph and anything higher than 20" will raise the gph.
Kevin
Reply With Quote