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Help me silence my drain pipe


c_man7

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My new problem is the drain is so loud to the point were you can hear it from one side of the house to the other. I tried turning the drain to where it was completely submerged, then the water level drops down to where it can suck air in. If I turn it as far up as I can then the same thing happens the water level raises till it makes the suction noise. I tried drilling a hole at the top the strainer and run an air hose through it but still no luck, it helped a little, but still loud, finally I added another elbow to move the strainer around the eurobrace, this helped more but is still too loud. Any Ideas? I was thinking have the 90 point left add a "T" fitting where the middle hole points up and the right hole will have the strainer. put a cap on the middle hole with a hole and air hose. I don't have much room do to the eurobracing. Also I think my emergency drain is too high. It's about 1/2" above the waterline. should I trim that to be the same height as the water line?

 

This is how the drain originally looked. Then I realized that it would drain to much to the sump, so I turned a little more then 90 degrees, thats when I heard the suction so I turned it down a little less the 90 still made the noise even leaving like this the water would just drop to start a suction.

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So I drilled a hole in the strainer and added an airline, this helped a little and I've tried several different positions. Thats when I added the extra 90, it cut the noise down in half but it still sounds like a constant toilet flushing.

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My proposed plan. The eurobrace really doesnt allow me to do much. An overflow box will be blocked to where I wouldn't be able to access it. and the stockman stand pipe would be too tall, unless I can shrink it down some. I'm out of Ideas, help me out guys.

 

Drain_zpsfboitjzj.jpg

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i didnt read your post, but going by your picture why not just drill a small hole into the top of 90 and put the airline there?

The one on the back of the tank?

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FlowLikeWater

yes, coming out the back. ideally that 90 would have been a T. still would be easy to fix with that union right there. ( durso standpipe )

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Marc.The.Shark

Pic of how it goes into sump? I had the same issue with dual drains & ended up going with reverse durso's in the sump. Totallt quiet now. Takes a little more room, but that's ok. Google reverse durso or check my build thread in my sig for pics. Might work if you have the room. You wouldn't need it on the emergency, just the main drain. I have a shit ton of 90's, so there were very few options to quiet mine down, but now its silent

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Pic of how it goes into sump? I had the same issue with dual drains & ended up going with reverse durso's in the sump. Totallt quiet now. Takes a little more room, but that's ok. Google reverse durso or check my build thread in my sig for pics. Might work if you have the room. You wouldn't need it on the emergency, just the main drain

Ill check it out here is what it looks like.

 

I added a union to each of the down pipes.

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yes, coming out the back. ideally that 90 would have been a T. still would be easy to fix with that union right there. ( durso standpipe )

Yea I realized that afterwards, the tank was used and most of the pluming was already put together.

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Your airhose idea should be able to work if you run in to the proper position - essentially need to reach about the same point as FlowLikeWater suggested adding a hole to the elbow - where the water starts the drop to the sump. I did this in my drain to prevent it from sucking air, and it is very quiet. But if there's too much suction (too much vertical distance to the sump drawing the siphon) then the air through an airline might not suffice.

 

This was how I had set it up: http://www.nano-reef.com/topic/363143-sleeping-with-the-fishes-say-hello-to-my-little-friend/?p=5152995

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FlowLikeWater

this picture was taken from the internet but represents what i am talking about;

 

BRP_DURSO_Build_zpsfuujyhvx.jpg

 

you dont even need #7 and #8, you could just use a PVC cap and drill a small hole into it, then stick a piece of rigid airline into the hole sticking straight up

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Ok thanks for the help guys, I'll try the longer airline tube, to the vertical drop. I only had a short 5" piece, So the airline hose should go from the strainer all the way to the 90 bend at the back of the tank?

then I'll dry the reverse durso,

then I'll try drilling the back 90 and adding airline to that.

 

It's going to be real hard to change the 90 out for a "T" and re do my plumbing with out draining and moving the tank, so hopefully one of those will work for me. If I have any problems I'll get back on tonight.

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Marc.The.Shark

Ok thanks for the help guys, I'll try the longer airline tube, to the vertical drop. I only had a short 5" piece, So the airline hose should go from the strainer all the way to the 90 bend at the back of the tank?

then I'll dry the reverse durso,

then I'll try drilling the back 90 and adding airline to that.

 

It's going to be real hard to change the 90 out for a "T" and re do my plumbing with out draining and moving the tank, so hopefully one of those will work for me. If I have any problems I'll get back on tonight.

Yeah, you have quite a few 90's too, that never helps. Be nice if you could get away with the airline fix, but that didnt work for me either. Works on my current tank, but only a couple 45's. I tried a bunch of different configs cause I want it silent. Reverse durso did it, can only hear my pump a little with the sump door open.

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Yeah, you have quite a few 90's too, that never helps. Be nice if you could get away with the airline fix, but that didnt work for me either. Works on my current tank, but only a couple 45's. I tried a bunch of different configs cause I want it silent. Reverse durso did it, can only hear my pump a little with the sump door open.

I just looked up the reverse durso, I may run the airline and then run the reverse durso as well regardless, I just have to get a T I have all the spare parts other wise, Yea there are 3 90's on the drains. Worse case I cut them out and run 45's on the bottom two we will see though. for th airline coming out of the reverse durso, where does that hose go to?

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Marc.The.Shark

I just looked up the reverse durso, I may run the airline and then run the reverse durso as well regardless, I just have to get a T I have all the spare parts other wise, Yea there are 3 90's on the drains. Worse case I cut them out and run 45's on the bottom two we will see though. for th airline coming out of the reverse durso, where does that hose go to?

 

I didn't use an airline, just the hole in the cap was enuf. Didn't make a difference
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Marc.The.Shark

Keep us posted. And I have five 90's on each drain(well, maybe four & a 45)! Lol. Never thought I'd get it, took me a week trying diff stuff! Lol

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The hole in the elbow will work, but from my understanding the one shortcoming is that the pipe can never go to full siphon in an emergency if it needs to (unless you run the airline over the glass to just above the water surface inside the tank). Depending on the setup of the plumbing, that may or may not be worth considering.

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The hole in the elbow will work, but from my understanding the one shortcoming is that the pipe can never go to full siphon in an emergency if it needs to (unless you run the airline over the glass to just above the water surface inside the tank). Depending on the setup of the plumbing, that may or may not be worth considering.

This is why I will try all other methods before drilling, it doesn't need to be dead silent, just not super load, I'd be happy with something in the middle, a little noise isn't so bad to me. Makes it sound like the ocean. but the gurgling toilet bowl has to go ahah.

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Having the two drains would it be possible to run the herbie style method? How do I get a full siphon on the primary drain pipe? After researching I think this would solve the problems, I'm just not sure how to raise the water level. Seems like no matter where i turn the primary drain the water either raises or lowers to start sucking air.

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You would need to install a valve on that drain in order to regulate the flow so that it siphons, but not fast enough to lower the water level. In other words, you need to adjust the siphon speed to be slower than your return pump, but faster than the return pump minus overflow capacity.

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Ok update, I got about 2.5' of 3/8 hose and shoved it as far as I could down the drain, this helped dramatically, Then I built a reverse durso for the sump which cut out all the splashing and bubbles. Every now and then, like once every few minutes there is a gurgle, but nothing compared to what it was. I am going to pick up some longer hose and see if I can reach my horizontal run. I believe thats where the air pocket is. but all and all the set up now isn't bad at all. Even the occasional gurgle is a fraction of how loud it used to be.

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Marc.The.Shark

Nice. Glad it's better. Yeah, I'd try the longer airline for sure. In my currently running tank I have a standpipe drain with airline drilled in the top & it runs almost all the way down to the waterline in the sump, maybe a couple inches above. That ones silent too. Airline is cheap to try.

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Nice. Glad it's better. Yeah, I'd try the longer airline for sure. In my currently running tank I have a standpipe drain with airline drilled in the top & it runs almost all the way down to the waterline in the sump, maybe a couple inches above. That ones silent too. Airline is cheap to try.

Yea with the amount of noise that was cut out I'm going to get the longer hose for sure. I got the hose from a local guy who I always get corals from. He had the same problem on his frag tank so he let me have the left over piece, it reaches almost to the 90 of the horizontal piece of pipe so another 1-1.5' would be perfect.

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Ok guys now the the water levels have leveled off Im still getting some suction noise. I've added the reverse durso down in the sump. I've moved the hose from the very top to as far as it could reach still getting some noise. Right now I have the hose out the primary which is 90 degrees, and my emergency at a 45 where it is taking in a little water. But i'm still getting a loud noise coming from the hose it self like a whooshing noise. If I blow through the hose to where air bubbles come out of the overflow, then stop it goes completely silent then after a few minutes it starts back up again. It's way more bearable, but if I can get it quieter I'd like to. I will try the long air line next to see if that will make a difference.

 

What if I up turned the 90 straight upwards? Would this still create a suction noise? How could I get the water stay where it just pours over the top and not fully submerge the pipe.

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Cencalfishguy56

Ok guys now the the water levels have leveled off Im still getting some suction noise. I've added the reverse durso down in the sump. I've moved the hose from the very top to as far as it could reach still getting some noise. Right now I have the hose out the primary which is 90 degrees, and my emergency at a 45 where it is taking in a little water. But i'm still getting a loud noise coming from the hose it self like a whooshing noise. If I blow through the hose to where air bubbles come out of the overflow, then stop it goes completely silent then after a few minutes it starts back up again. It's way more bearable, but if I can get it quieter I'd like to. I will try the long air line next to see if that will make a difference.

 

What if I up turned the 90 straight upwards? Would this still create a suction noise? How could I get the water stay where it just pours over the top and not fully submerge the pipe.

I have mine as a 90 upright as my overflow, it creates a small suction noise every few minutes, but I enjoy the sound of it as long as its not obnoxiously loud

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I will try this and see. I wouldn't mind if it was more of a suction then a gargle. It gets annoying since its in my dinning room and you can hear it over the sound of the tv.

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Cencalfishguy56

I will try this and see. I wouldn't mind if it was more of a suction then a gargle. It gets annoying since its in my dinning room and you can hear it over the sound of the tv.

yea mine is pretty silent when everyone is home and the TV, ect. is going on

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