Durso drain noise reduction

[Heavymman]

Wondering if anyone can help me out with this. I have tweaked my durso drain to the point there is no noise out of the display tank side but I can’t seem to get the noise down in the sump.... any ideas?

 

[ndrwater]

If you put a pipe below the water level in the sump, it should make the drain almost silent

 

[Heavymman]

If you put a pipe below the water level in the sump, it should make the drain almost silent

I have a piece of tubing 2” above the bottom of the sump floor in the filter sock. That’s where I’m getting the noise. I am running RODI water in the tank at the moment, not sure if that has anything to do with it.

 

[ndrwater]

You might try a 45° fitting at the bottom of the drain pipe. Water falling directly into the sump may cause some noise. Giving the water a change in direction at the bottom may help

 

[Heavymman]

You might try a 45° fitting at the bottom of the drain pipe. Water falling directly into the sump may cause some noise. Giving the water a change in direction at the bottom may help

Ok thanks

 

[Heavymman]

Since I don’t have the pvc parts to do it I was thinking of putting a bend in the drain tubing, similar to a ptrap on a sink. Anyone think this would reduce the gurgling and load sounds coming out of the sump?

 

[Heavymman]

Ok added 45 and still have and issue.... driving me absolutely nuts

 

[Heavymman]

Maybe a reverse durso... picture is horrible but I’m thinking of adding a wye fitting with an end cap on top and hole drilled with some air tubing... the gurgling in the sump is kill me lol... display is quiet.

 

[Danj]

Do you have two drain lines or one? The best thing to do would be to put a gate valve on your primary drain line and adjust it until you have a full siphon that doesn't draw any air. Then the your second line would be a straight emergency pipe that would handle any overflow conditions. Otherwise if you just have the one drain line the best you can do is play with how much air enters the durso line, but speaking as someone who ran a durso like that for about a decade, I never had any success making it anything close to what I'd consider "quiet".

 

[Heavymman]

Thanks @Danj , unfortunately I have only two holes in the bottom of the tank, one was for drain and other for return. I guess I’m kind of screwed here unless I go over the top with a return

 

[Firemanreefkeeper]

My buddy trashed his tank, literally threw it in the trash, because he couldn't get his durso drain quiet. Needless to say I have a nice tank now. I put a gate valve on it, made the second pipe the emergency overflow, added another pipe as the return and have it in my living room as we speak, and quiet as a mouse.

 

[Heavymman]

My buddy trashed his tank, literally threw it in the trash, because he couldn't get his durso drain quiet. Needless to say I have a nice tank now. I put a gate valve on it, made the second pipe the emergency overflow, added another pipe as the return and have it in my living room as we speak, and quiet as a mouse.

Do I need an emergency? My levels are proven out. But even a full siphon is loud in the sump

 

[Firemanreefkeeper]

100% yes. If something gets in that pipe and plugs it, you want the water to go somewhere and preferably into the sump and not the floor. Case and point. I'm at work, wife calls and says your tank is making an awful noise and the water looks high. I tell her what to look for and she opens the valve and a snail tumbles out from the gate. If it hadn't been for the emergency, I might have burnt up a pump, flooded my floor? Who knows but that's what it's there for.
I ran pipe up the back and into my tank for the return. I have a pic if interested.

 

[Heavymman]

Makes sense, please to send over pic if not to big of a deal

 

[Firemanreefkeeper]

2 white pipes are my return lines. White looks bad but this is an old pic. They quickly get covered with coraline and blend in. I ran it up the back then split it into 2 lines.

 

[Heavymman]

2 white pipes are my return lines. White looks bad but this is an old pic. They quickly get covered with coraline and blend in. I ran it up the back then split it into 2 lines.

Ok , done lol

 

[mr9iron]

It's been a while since I ran a Durso and if I remember correctly having the tube about an inch below the water line in the sump helped.

 

[Matthew Frost]

Maybe a reverse durso... picture is horrible but I’m thinking of adding a wye fitting with an end cap on top and hole drilled with some air tubing... the gurgling in the sump is kill me lol... display is quiet.

Don't do this, you will have a horrible mess on your hands. This is an issue of water velocity. Your Durso is working perfectly the water entering the sump is just moving so fast its splashing and gurgling. Try adding two 90 degree bends and a horizontal piece of pipe, even 6" will make a difference.

 

[Haberdasher]

Can you provide a pic of what's happening in the sump on the drain side? Are you getting bubbles from drain in the sump?

 

[Heavymman]

Can you provide a pic of what's happening in the sump on the drain side? Are you getting bubbles from drain in the sump?

Yes, I can’t give you a video/pic I just drained it. I’m going to do a full siphon with emergency and drill two new holes for the return. I will put a gate valve on the full siphon. Hopefully this will help