quieting overflow

[jelly]

whats the best way to quiet your overflow.. im in the process of redoing my reef and want to keep my plumping as silent as possible. I would also like to keep micro bubbles to a minimum. so with all the different kinds of stand pipes which one would give me the performance im looking for.

 

[TJ's Reef]

Herbie or Bean animal, I run a Herbie style and when adjusted to full siphon with gate valve there is no micro bubbles and almost no noise except for where/how water enters sump chamber.

Cheers, Todd

 

[Bad Company]

When you make the herbie or bean animal, make the emergency inlet only about 1/8" below the bottom of the teeth. Then adjust the siphon restriction (gate valve) to set the waterlevel in the overflow right below the emergency inlet. This will make your overflow absolutely silent.

 

[philr]

Ok.... please explain..... herbie or bean animal???

 

[Themonsterisme]

What about a stockman or durso vs herbie or bean?

 

[MURedhawk]

Here is my set. I have durso set up standard with MarineLand reef ready corner overflow. It made a bit too much noise so I modified the tank outflow going into my refugium. One drain to sump with skimmer and splits 2nd drain into refugium. In order to cut down air noise from bubbles, I did a reverse durso - like system with PVC tubes to vent the air and separate from the water. End caps with drilled holes in the top of the air vents are in pics. The only negative was that it took up some extra space in my sump to run the PVC bends and 90 degree turns.

 

[Spsnut]

Ok.... please explain..... herbie or bean animal???

They are both based on running a full syphon. Basically, one uses a valve on the drain to keep the drain full of water and syphoning; without the valve the syphon would pull more water than the pump should supply. Both drain systems rely on having one or two backup drains in case the syphon drain slows or clogs.

 

[TJ's Reef]

OK, here is pics of my 'Herbie' setup below. I have two corner drains with 1.5" mains and 3/4" emergencies.

Overflow box when first plumbing the system, shortened 1.5" main drain to achieve full siphon and 3/4" emergency slightly higher than bottom of teeth.


Underneath view showing Gate Valves which allow you to create the full siphon by restricting flow in minutia



And initial tuning of full siphon



Cheers, Todd