Loud overflow, drain pipe into sump

[recess62]

You should have the main drain a few inches below the sump water level. This will eliminate and noise from the main drain into the sump. The emergency should be a inch or so above the sump water level. Once tuned correctly there will be a little trickle noise from the emergency and no noise from the main. The reason I keep the emergency above the water level of the sump is so that if there is a problem with the main and there is a lot of flow through the emergency it will make noise so that I know there is an issue with the main

 

[govolsguy31]

You should have the main drain a few inches below the sump water level. This will eliminate and noise from the main drain into the sump. The emergency should be a inch or so above the sump water level. Once tuned correctly there will be a little trickle noise from the emergency and no noise from the main. The reason I keep the emergency above the water level of the sump is so that if there is a problem with the main and there is a lot of flow through the emergency it will make noise so that I know there is an issue with the main

I only have a single drain line, no emergency. And the drain line is a couple inches below the water line.

 

[recess62]

Hmm. You have clear vinyl hose. Can you see any air in the line?

 

[govolsguy31]

Hmm. You have clear vinyl hose. Can you see any air in the line?

Oh yea, the draining water isn't enough to fill the hose completely. Maybe not even half. Is that what you mean?

 

[recess62]

Oh yea, the draining water isn't enough to fill the hose completely. Maybe not even half. Is that what you mean?

Yes. The drain should be running a full syphon. For some reason you are not getting enough flow to purge the air. Are there any kinks in the hose or anything else limiting the flow?

 

[govolsguy31]

Yes. The drain should be running a full syphon. For some reason you are not getting enough flow to purge the air. Are there any kinks in the hose or anything else limiting the flow?

Could it be as simple as the return pump not pushing enough water into the overflow? I may try turning it up and see what happens. I haven't had it above 30% or so.

 

[kschweer]

Yes. The drain should be running a full syphon. For some reason you are not getting enough flow to purge the air. Are there any kinks in the hose or anything else limiting the flow?

In a durso set up there is no full siphon as there is no emergency drain. Air in the drain line is normal in this configuration.

 

[govolsguy31]

In a durso set up there is no full siphon as there is no emergency drain. Air in the drain line is normal in this configuration.

I kinda thought that was the case, but being a noob, wasn't sure. Even at full-powered return, same thing. Im thinking it just is what it is. Gonna get some filter socks and see how much that helps. At any rate, it's really not all that loud.

 

[recess62]

My bad. I saw you had 2 bulkheads in your return chamber. Thought you were going for a herbie. Have you considered converting this over to a herbie? You will then have an emergency overflow. You can then plumb your return over the top.
https://www.reef2reef.com/threads/durso-vs-herbie.220634/


https://www.reef2reef.com/threads/from-durso-to-herbie.272934/unread

Sorry to confuse you

 

[mcarroll]

I had no clue what this thing did. I just thought it was a part of the guys' setup I didn't need since I'm sure I plumbed the tank differently.

Those things were invented for people who run tons of flow through their sumps – they are from the days before a good powerheads existed.

If you don't have any special reason for running a ton of flow then 2 to 4 times your display size is all you need For flow.

It's unlikely that level of flow will be noisy.

 

[Azraz]

You need to convert to a herbie overflow system, look it up on you tube. I had all kinds of noise with durso, no mater what I did, gurgles and water flow noise. Converted to herbie and all I hear now is my skimmer . Cannot hear any water flow noise at all.

 

[T-Fin]

I would hard plumb the drain. That would help with the gurgling.

 

[ReeferBob]

A Durso is never going to be silent. Your best bet is to convert both of those bulkheads (return and drain) into drains (drain and drain). Then do and over the back for your returns. This is called a "Herbie" style, as others have mentioned. Dead silent. Check out my below video it shows this in action and explains how to convert it.

If you keep your Durso, make sure to back off the flow so it doesn't "flush".

 

[racin2438]

You also use a muffler Maggie, they are super quite....but you can make a duraso pipe very easily.