What are ways that people use to quiet their overflows? Mine either sounds like a waterfall or it gurgles. I know why it is doing this but now I am wondering how to fix it. I have read a lot of different ways online but am wondering what will work for me. Any suggestions?

Thank you in advance.

I would like to see pics and have a description of any method out there as I am trying to decide what will be best for me. I didn't give this part much thought and was told to just put an elbow up top out of the bulkhead and run tubing or pvc from there to the sump. So my overflow currently is a little too uncomplicated and I now need to fix it. I have looked at a few options but am trying to decide what will be best for me.

Thanks

Reefer4Ever wrote: This is commonly called a modified Durso .

I asked to see a pic because first I need to know the space of the overflow/drain area. Only by knowing that, plus a few more things, can I suggest the best solution.

The Modified Durso is a unique, original design, conceived by me after seeing hundreds of overflows and trying dozens of overflow designs over my 20+ years in this hobby. The Modified Durso operates on the same principles as the original brilliantly conceived Durso Drain, but takes half the space and in many cases is quieter than the original Durso. It's also just as simple to make as the original Durso. I have posted pics of it here before, but I hesitate to reveal it again because unless it's seen in action, because it's so simple, because I want no money for it, it's usually not appreciated.

SFReef, I seem to recall that we have met, right? Have you been to my place? 

Aloha,

Mark 

My DT will not overflow.  I designed the sump so the pump will run out of water before the tank will overflow.  

But I guess my sump is different than the OP so what I have done might not be the best option. 

Mark Peterson wrote: I have posted pics of it here before, but I hesitate to reveal it again because unless it's seen in action, because it's so simple, because I want no money for it, it's usually not appreciated. SFReef, I seem to recall that we have met, right? Have you been to my place?  Aloha, Mark

I have seen Marks creation, it is perfectly silent yet simple.

Thank you to everyone for this discussion. I would love to continue talking about this as well if anyone has any more ideas.

Mark, I have been to your place and I think you were showing me your overflow but I didn't understand it at the time and don't think I could have without having experienced an overflow before. Now that I have, I vaguely remember what your overflow looks like. I can't get up there anytime soon, though. Could you send me pictures and a description? I am sure it will make more sense now that I am seeing what I am seeing.

Thanks again.

More food for thought. I run a bean animal style drain and I have noticed that algae builds up between the wall of the plastic and the little teeth ... slot... things... on the factory overflow, and when that happens instead of a nice even waterfall cascading into the overflow its more of a super soaker spray and creates a noticeable gurgle.

I am trying to load pictures on here as requested but not having luck. If someone can help me figure out how to do that I will certainly be happy to attach those. The overflow is drilled on the back wall of the tank a few inches from the top and a bulkhead is on that hole. I then have a pvc elbow screwed into the bulkhead inside the tank. On top of the elbow is a cone shaped filter type thing.

On the back of the tank I had another elbow screwed into the bulkhead and the clear tubing was run directly to the sump underneath. It sounded like a waterfall and was very loud unless the tubing was draining directly into the sump and not allowing the water to fall into the sump. When I put it directly into the sump there was no air getting into the tube, though, so it sounded like a toilet flushing whenever it needed the air in for flow.

So I was told to try putting a pvc tee on the back of the tank. This allowed me to submerse the end of the tubing, which cuts out a lot of noise, but now it sounds like it is draining nonstop instead. While this is not as loud as before, it is still quite noisy. Any ideas on what to do from here?

Thank you.