Can't get rid of sump drain gurgling

Ok managed to find couplings and reducers to get it from a 3" bowl to 1" into the standpipe. Now, hopefully when I get home at try it, it works haha

Thanks for the help! I hope this does the trick
 
I see you have three holes in the bottom, why not do a bean animal design, then it will be silent and failsafe. Only downside, you would have to run your return up the back. If you don't want to do that you could do a herbie, but I would do the bean animal if I were you.
 
how many drains do you have on the bottom of the tank? if you have two, you can set up a Herbie drain like this: pitch quiet.
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Good Luck. Remember, all of these will tend to quiet down once they get the coating of slime.

I have three holes in my overflow as well, but I use them all for drainage. Two returns are run up the back out of my Ampmaster 4750. I have quite a bit more flow than you have going on here.

I use my three overflow bulkheads as follows: One (2") is the setup I described above at about 1" below the bottom of the overflow teeth and currently takes all of the flow. The second (1.5") is a Durso a little higher. The third (1.5") is just an open pipe at the very top of the overflow for an extreme emergency. It goes straight down and the pipe terminates 6" above the water level in the sump so that it is extremely loud if it ever gets to that point.

I don't know if this matters, but my drain has a constant slope before dumping into my socks.
 
Good Luck. Remember, all of these will tend to quiet down once they get the coating of slime.

I have three holes in my overflow as well, but I use them all for drainage. Two returns are run up the back out of my Ampmaster 4750. I have quite a bit more flow than you have going on here.

I use my three overflow bulkheads as follows: One (2") is the setup I described above at about 1" below the bottom of the overflow teeth and currently takes all of the flow. The second (1.5") is a Durso a little higher. The third (1.5") is just an open pipe at the very top of the overflow for an extreme emergency. It goes straight down and the pipe terminates 6" above the water level in the sump so that it is extremely loud if it ever gets to that point.

I don't know if this matters, but my drain has a constant slope before dumping into my socks.

You have nearly described a bean animal design, the original design has the emergency go into the water.
 
Yea, that's probably where my iterations began, but it is a heck of alot easier.

I've been doing this a long time. I had a 450 running 4000+ gph through the sump and did it this way. This was long before any bean animal or herbie stuff. My Deltec skimmer made more noise than those overflows if that says anything. When I set up these new tanks (after a cross country move), I researched the various overflow options and saw that the Bean Animal was close to what I was already doing, so I stuck with what I knew. I will say that I tried some new options, but came back to this, works for me.

I am sitting in my office now, about 30' away from the tanks, and my outside AC units are the only thing I hear. I cannot hear anything from the tanks.
 
Got it! I cut a new standpipe that put the water level at the center of the T. Virtually silent. Thanks everyone for the help :)
 
Hey Sky junkie, I know this is a very old thread but I wonder if the issue with your Durso drain pipe was resolved to this day with the tweak you made? Do you have pictures of the fix?
 
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