Too much air in the sump return from durso's.

[prugs]

I have a reeflo dart pump as a return to 210gal tank.
I am using the standard AGA durso tank kit with 2 x 1" returns to the sump.
The problem is lots of noise (not the flushing type), but from all the air going down the drains & into the sump.
Is there a fix to this?

 

[TheVillageIdiot]

how big is the hole on the end cap? You can use gum or silicone to close it up a bit if you did indeed drill the hole too large...

 

[Stile2]

Do you have two drains?

If you do then you can try this, I haven't done it yet but I'm planning to do this to my new tank, being set up now. I have read about others doing this and they say it works great.

One drain straight pipe a couple of inches below the other drain with a durso on it. Have a ball or gate valve on the straight pipe and restrict the flow until the straight pipe is completely below the surface and the extra is going down the durso.

This way the straight pipe is flowing 90-95% and the rest is going down the durso. This serves two purposes, one there is not enough water going down the durso to make noise, and second if the first pipe gets clogged then the durso is the back up.

HTH
Keith

 

[Qwiv]

That is a lot of flow running through a sump and that is your problem. Put the dart on a closed loop if you can and get a smaller return pump. Best Solution.

 

[steve68]

i have a Sequence 3200 on my 210 & i use both bulkheads as returns but only one durso & the other one open no problem what so ever.

 

[Qwiv]

Yah, the durusos an quite a pit of air in the return line. Why don't you just get rid ot it then since the non-durudo one isn't bothering you.

 

[prugs]

Thanks for the help.
I'm using the 3/4" bulkheads for the drains & the rest of the water goes down the durso's. Works pretty good except now I just have to work on the noise of all the water rushing over the top of the Megflo's.

 

[steve68]

here is how high my durso is, i also have a piece of acrylic on top of the overflow to cut down on the noise & all u can hear are the ice cap fans on the canopy

 

[prugs]

steve68,
I can see from the amount of water going into your overflows, you have the same problem. I'll have to try the piece of acrylic on the top of the overflow.
Have you thought of cutting out those little teeth & replacing it with gutter guard?

 

[steve68]

with the acrylic piece on top u cant hear the waterflow.
no problem here works fine for me.

 

[fish_taste_good]

prugs - Anymore on your solution?

I seem to be having the same problem on my 90. See if you can chime in on my thread located here.

http://reefcentral.com/forums/showthread.php?s=&threadid=633422&highlight=Durso

 

[lastlight]

Stile2...your method worked perfectly. Thank-you!!! Never thought I'd be happy to hear my pump but at least i can now lol...

 

[Stile2]

Great to hear. I set up my new tank in the garage with this same method. Zero noise, zero micro bubbles.

I have to admit it wasn't my idea. I got it from a thread here on RC, but can't remember where or else I would give credit to the genius who thought it up.

Keith