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 Topic: overflow quieting suggestions
Posted: February 03 2017 at 10:35am |
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^^^ what he said 😃
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Ogden
"Those are my principles. If you don't like them I have others."
Groucho Marx
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kevin.st
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Posted: February 03 2017 at 10:33am |
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Herbie with a gate valve. Done.
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kevski
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Posted: February 03 2017 at 10:16am |
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That has been my experience also with my herbie drain setup, people comment all the time how quiet it is... SILENT!
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100 G Mixed Reef / AI Hydra 52 HD-T5 Hybrid
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Transam
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Posted: February 03 2017 at 9:07am |
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I will post a few pics when I get home. I use the "herbie" style over flow and use a gate valve. Using a gate valve makes the adjustment super easy if you used a normal ball valve it may be tough to adjust I can imagine. Mine has been running for over a year with no issues at all and no adjustments past the initial one. Fellow reefers come over and comment on how quiet my take is compared to theirs using other over flow methods.
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Ogden
"Those are my principles. If you don't like them I have others."
Groucho Marx
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Mark Peterson
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Posted: March 09 2016 at 6:11pm |
Okay, I have some pics for y'all. You've seen, if you looked at the link posted earlier, the Modified Durso with the stand pipe where prongs are cut to stick up and hold the cap in position. Here is another variation.
Water rolls down a stand pipe; a 1" Class 200 PVC which extends 1/4" into the 2" ABS Cap above. A 1.5" ABS Cap could have been used to conserve space if required. Class 200 PVC Pipe has a larger inside diameter which allows more water flow.
The Cap was drilled on each side and secured with a Zip Tie around the center brace. In case you're wondering, the entire tank frame was painted white to match the white stand.
The holes for the Zip Tie did not let enough air through so a separate hole was drilled in one side and then another hole on the other side was drilled to let enough air into the Cap to make the drain absolutely silent.
Initially I was dismayed by the fact that this used 30 gal breeder tank had been drilled in the bottom back center, straight below the brace, but I relaxed when I realized this allowed the cap to be positioned perfectly. 
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Mark Peterson
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Posted: March 03 2016 at 5:38pm |
 SFReef wrote:
I saw somewhere where I can put a cap on and drill a hole in the cap with airline tubing coming from the cap. |
Yes, the cap (in this case just use a PVC Plug in the Tee) with a small hole is what silences it. It works like a car muffler. Start with a small hole like 1/8" and if that doesn't work, drill it 1/4". It's the size of the hole that matters. The airline tube is unnecessary and sometimes even gives a noise of it's own.
Actually I'll bet the modified Durso would work, there are easy design mods to make it work in different situations, but if this T with a cap does the job, no need to go any further. 
Aloha, Mark 
P.S. The Herbie Drain is sensitive to changes in return water flow and changes in sump water level, whereas the quiet operation of the Durso and Modified Durso is unaffected by those variations.
Edited by Mark Peterson - March 03 2016 at 5:48pm
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Holyzion
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Posted: March 03 2016 at 10:59am |
So i have ran a few different drain methods in my few years of reefing and i have to say Herbie drain is by far my favorite and it is whisper quite, it was actually unnerving to hear no water flow at all when i first started my tank.
It took me a 5 minutes to adjust the gate valve to get the flow just right in my case. I also have a cover that guards my main drain from being clogged. I run a DC return pump so i use the feed button which shuts my pump off for 15 minutes, I have never had an issue with it overflowing the sump. I have also tested by plugging my main drain, the back up drain more than handled all of the water flow from my return pump.
Each person here will have different success with different methods and they will stick with what works for them and swear by it. In the end test every solution you have available to you and stick with what works the best for your tank since every tank is different.
Best of luck.
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Krazie4Acans
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Posted: March 03 2016 at 9:20am |
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My ocean. 90g (yup, won it!), 40g, 28g, & 10g Systems PADI Advanced Open Water Tank Thread:
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SFReef
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Posted: March 03 2016 at 8:12am |
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.
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kevski
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Posted: March 02 2016 at 8:45am |
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Thats the reason for the emergency drain. So if something does get caught in the siphon drain it can still flow down into the sump. Plus I have a bulkhead screen on the siphon drain to prevent snails, etc from getting in there and a 1/4" plexiglass cover over the overflow so the only thing that could get into the overflow would be of the size that can fit between the overflow teeth. As for the sump, I have a 40 g. capacity that runs with 20 g so I have plenty of extra capacity for the 2.5 gal overflow volume. Granted I have done a small amount of tweaking on the gate valve but only a few times and then it's only to quiet a small trickle sound... Which is still quieter than the Durso running optimally. The Herbie is dead silent.
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SFReef
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Posted: March 02 2016 at 7:39am |
I was told to put a PVC tee pipe on the back of the tank to help it quiet down so I did that but am not sure what to do now. It quieted it down a good amount but it sounds like it is draining all the time now (which it is). I saw somewhere where I can put a cap on and drill a hole in the cap with airline tubing coming from the cap. Does that work? Does the modified durso only work if put over where the water overflows into the PVC pipe? I don't think that is an option unfortunately. Any other ideas of what I can do by any chance?
Thank you all for your help and ideas.
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Mark Peterson
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Posted: March 02 2016 at 7:17am |
That tweaking of the Gate Valve is the major difficulty with the Herbie design. It may often require monitoring, tweaking and as I said in my first post above, if a Snail, dead fish or piece of crud goes down the Herbie drain it can obstruct the gate valve opening and if an ATO is present, can cause the display tank to flood. 
There is also a need, once the Herbie is running, to turn off the return pump to see if all the water that backed up in the overflow can be contained in the Sump/Refugium. I cannot overemphasize the importance of testing the Herbie Drain by turning off the return pump. If it looks like the sump is going to overflow, quickly turn the return pump back on and go back to the drawing board. 
I have also seen the difficulty Kevski mentioned regarding the traditional Durso. It can be adjusted to run quiet. The variables are this:
1. Adjust the height of the Durso in the overflow to avoid a waterfall effect 2. Adjust the size of the breather hole in the cap of the Durso to allow just the right amount of air 3. Adjust the flow of the return pump to match the capacity of the Durso 4. There is one more...can't think of it, I'll add it later when I remember 
Does anyone here use or want to talk about the complicated Bean method and other designs? 
Aloha, Mark
Edited by Mark Peterson - March 02 2016 at 7:38am
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kevski
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Posted: March 01 2016 at 2:06pm |
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I just recently set up my 100 g. Tank and started with dual Durso's but after several days of unbearable gurgling down the Durso pipe and the 4+" waterfall noise over the overflow to the Durso inlet I gave up and went with the Herbie design. Ahhhhhh.... Silence (once I got the gate valve dialed in). Love it!!!
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100 G Mixed Reef / AI Hydra 52 HD-T5 Hybrid
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1stupidpunk
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Posted: February 29 2016 at 11:47am |
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.
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Mark Peterson
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Posted: February 29 2016 at 11:12am |
Okay, before I wrote up this info all over again, I decided to go looking for what's already been said. I wanted to provide information and perhaps spawn other ideas for you. I love that we can search this forum.  Check out these threads: Aloha, Mark
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Reefer4Ever
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Posted: February 28 2016 at 3:37pm |
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...
Edited by Reefer4Ever - February 28 2016 at 3:43pm
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90 gal reef w/refugium
24 gal softie tank
11 gal nano anemone tank
5 gal fresh water
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SFReef
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Posted: February 28 2016 at 3:31pm |
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.
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christhjesus
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Posted: February 28 2016 at 1:43pm |
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.
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christhjesus
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Posted: February 28 2016 at 1:36pm |
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.
Edited by christhjesus - February 28 2016 at 1:37pm
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jdubb925
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Posted: February 28 2016 at 12:41pm |
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Clearly not my thread but I am very interested in Mark' Modified Durso design
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Justin W.
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