overflow question

[Canuckgod420]

Just wondering if I could get more return on my tank if I went herbie style.
Right now I have the megaflow overflow system that came with the tank and its rated at 600 gph. Not sure what the size of the return hole is in the bottom of the tank(whatever the standard drilling is).
I got a new pump from my work and it pushes insane amounts of water(not sure how much but the pump is 1/3 HP)

This should be fun!!!

[mark]

A Herbie works as a full siphon, not partial such as a Durso so technically yes, more flow.

You do have two drains bulkheads available though, one for the primary, then the emergency?

[fkshiu]

Why in the world would you need a 1/3 hp return pump for a 72 gallon (according to your sig) tank? Too much flow throug the sump causes more noise, micro-bubbles and salt creep and reduces the effectiveness of your skimmer.

[xtreme]

Originally Posted by fkshiu

Too much flow throug the sump causes more noise, micro-bubbles and salt creep and reduces the effectiveness of your skimmer.

What is the recommended flow through a sump?

[RuGlu6]

Originally Posted by xtreme

What is the recommended flow through a sump?

you tank volume x few times /hr, just to have enough to feed your skimmer and to replace water effluent from you calcium reactor etc. so minimal return from sump is OK imo.

[sphelps]

haha 1/3hp! The reeflow barracuda is smaller and that pushes 4500gph! Hopefully you didn't purchase a utility or sump pump from Canadian Tire or somewhere similar. Well at least it will sound good

[RuGlu6]

Originally Posted by fkshiu

Why in the world would you need a 1/3 hp return pump for a 72 gallon (according to your sig) tank? Too much flow through the sump causes more noise, micro-bubbles and salt creep and reduces the effectiveness of your skimmer.

x2
the above is correct
in addition to the above:
Amount of return g/hr is not as important as internal flow, i.e. flow in display tank. And what we have in our tanks is still nothing compare to the ocean currents, i have almost x200 times flow in my 60 gal, but only less then 300 g/hr return from the sump.
jmtcw