john_blaze
02/15/2010, 05:11 PM
Hello RC, reefer newbie here that needs some help with my DIY.
I just bought a 125 acrylic and plan on using Bean's overflow system. I read through at least half of the 100+ pages, and still have a few questions:
I want to try and put my external overflow on the side of my tank so that the front and back will be visible. I am trying to figure out how much flow I would actually get from a ~15" weir. I tried to use the weir formula to figure it out, but I do not know how high the water will be over the draining edge. I am shooting for ~500gph through my sump (melev's recommendations). From the drain/overflow calc it says that an 8" linear flow with .92" drains will get me 500 gph.
1. How much flow will I get?
2. How big should my overflow box be? A certain depth? Obviously big enough to handle the piping, but is that all I should consider?
I figure that my 15" flat topped weir should allow for ample flow (it will be cut like coyote's if you have seen his build thread), but I want to be sure before I cut into my tank.
Any ideas/suggestions? Will I be ok? I posted this in Bean's overflow thread, but I figured that I would put it here too.
Thanks in advance for any help!!!
I just bought a 125 acrylic and plan on using Bean's overflow system. I read through at least half of the 100+ pages, and still have a few questions:
I want to try and put my external overflow on the side of my tank so that the front and back will be visible. I am trying to figure out how much flow I would actually get from a ~15" weir. I tried to use the weir formula to figure it out, but I do not know how high the water will be over the draining edge. I am shooting for ~500gph through my sump (melev's recommendations). From the drain/overflow calc it says that an 8" linear flow with .92" drains will get me 500 gph.
1. How much flow will I get?
2. How big should my overflow box be? A certain depth? Obviously big enough to handle the piping, but is that all I should consider?
I figure that my 15" flat topped weir should allow for ample flow (it will be cut like coyote's if you have seen his build thread), but I want to be sure before I cut into my tank.
Any ideas/suggestions? Will I be ok? I posted this in Bean's overflow thread, but I figured that I would put it here too.
Thanks in advance for any help!!!