durso pipe question

[alextheromanian]

im very curious about the durso standpipe system


ive never seen one in person and all i gave seen so far has been in pictures.

i dont understand how they work but i do understand that they are made to make the draining less loud.


i see many people who have set this up in a separate chamber inside of their tanks that has a lower level of water than the rest of the display tank...and i understand that its lower in che chamber because when it gets there it drains. but what i dont understand is how the durso standpipes surface skim if the opening is underwater.

ive also noticed that one standpipe sticks out in the air...not even touching the surface of the water...

can someone explain please?










i took the liverty to edit hope noone minds








ive taken these pictures from Tswifty8's reply to a post because i like the neatnes of this tank

link to the post is here:

http://reefcentral.com/forums/showth...readid=1439157



any help would be IMMENNSLY appreciated on this comfusing (to me) issue


thank you all!
alex

[Playa-1]

Check out this site. I believe it will answer most of your questions:

www.dursostandpipes.com

[cdbias2]

The picture you are refering to is not a durso setup.

[alextheromanian]

Originally posted by cdbias2
The picture you are refering to is not a durso setup.

its not?

what is it then?

[cdbias2]

It's tswifty's custom setup for and overflow.
You got the pick here from his thread on 90g build.

[drparker]

To answer your questions about this setup.

The surface skimming happens when the water flows off the surface of the display tank and into the overflow box. The flow through the overflow box is sufficient to keep the organics mixed and sucked down the drain pipes. The tube facing up is a safety in case the primary drains get clogged the water will overflow this one instead of over the sides of the tank.

[stingythingy45]

Well,in reality all 3 drains are durso's as they have the tell tale "T" with the cap and hole drilled.
Tswifty has a coast to coast overflow wall(I believe similar to a Calfo.......not sure).You can see that clearly in one of the pictures.
There is no need to do surface skimming as the overflow wall does that automatically.The drain to far left appears to be an emergency type drain.I would imagine that the op uses the ball valves to adjust the drain flow to closely match the return flow.
Very similar to a system earlier named"the herbie method".
This is just my take on the system.

[alextheromanian]

thank you for all the REPLIES! they have been very helpful!


i have a non drilled 75 gal tank i would like to move AND drill. the bottom is tempered so the best solution seems to be THIS setup unless someone has any better ideas oh how i should do this.

please post pictures since text can only explain in detail so much less than a picture could

thank you guys!

[saltee dood]

that is technically known as "The BeanAnimal Setup", it is made from a herbie setup but with one of the drains a full syphon, one a durso-style open channel and one emergency drain.

the primary drain is NOT a durso...it is a full syphon(no air introduced in the water pipe at all) the open channel durso style drain takes in the water the first drain cant handle and allows the system to self-adjust.
The emergency drain should never see water unless something catastrophic happens and both of the other drains clog.

this is the link http://www.beananimal.com/projects/s...ow-system.aspx

there is also a thread here in the DIY forum http://reefcentral.com/forums/showth...5&pagenumber=1

[saltee dood]

not sure what kind of pictures you want.

here's a couple

[calli]

Do you have to set up those holes any paticular way or could they all just be in line across the back?

[alextheromanian]

is the box made of glass?
did you cut it?

does it need teeth?

how come you drilled each hole at its own height? i very much so like this setup where the overflow is at the top instead of corners

[saltee dood]

Originally posted by calli
Do you have to set up those holes any paticular way or could they all just be in line across the back?

heh

I had actually planned on it being all on the same horizontal plane, but the first hole got away from me (the lower one). It works out ok since the emergency drain has an upturned 90 and putting it in the lower one doesnt really adversely affect its operation. It just lowers the level at which the emergency drain kicks in.

Originally posted by alextheromanian
is the box made of glass?
did you cut it?

does it need teeth?

how come you drilled each hole at its own height? i very much so like this setup where the overflow is at the top instead of corners

yes, it is glass...I had them cut at the local glass company and siliconed the box together on the bench then installed it in one piece.

Teeth are un-necessary, the purpose of the calfo overflows are to get the most surface skimming that you can. If you put teeth into it, you arent skimming from the surface anymore, you are taking water from however far under the surface your teeth extend to. Bean explains it better in his thread.(and in the next two links)

http://reefcentral.com/forums/showth...31#post8309431

http://reefcentral.com/forums/showth...6#post10469676


this link is to a thread dedicated to Calfo overflows, might come in handy for you.

http://reefcentral.com/forums/showth...hreadid=473152

[cdbias2]

Awesome stuff.
Thank you!