My 125 Gallon LED Reef Peninsula tank build

[ohioreef]

Nice clean work.....I really like this.   The only portion that makes me nervous is how you have a return very very low in the tank which makes you rely on that check valve.  I know I have a BUNCH of stuff that lives in my plumbing, snails, sponges, not to mention the slimy stuff that sticks to the walls.  I would be afraid that check valve isn't going to work properly and you could siphon your tank out onto the floor.  Something to keep your eye on.......as it would make me very nervous.

I see he has a return up towards the top of the tank also, wouldn't that break the siphon before he drained the whole tank?

[mccorry]

Well... fired everything up last night and the overflow piping is NOISY!  Argh.  I've got Gurgle busters on the overflow box and it's pretty quiet... but the PVC return is loud.
Looks like I'm going to have to ditch all that hard work and switch it out to two 1" flexible PVC return hoses to get rid of the bends...

Oh well.

Any other ideas?

[charlieweaver]

Weird. If the pvc is full of water and no air it should be quite.  Is it the pump its self making noice?

Just like any pipe that has pressure in it should quite.
 
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[mccorry]

This is the drain line from the overflow box to the sump.....

The return line from the pump to the tank is perfectly quiet.

[chromiumlux]

Tagging along on this build. Looks great so far!

[lazylivin]

Is it pump vibration through the PVC?

[mccorry]

It is not the pump or return line.  It is from the Overflow box drain line to the sump.

[charlieweaver]

Oh do you just have one drain from the overflow box?

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[chromiumlux]

You should vent that pipe at the sump.

[lazylivin]

If a Maggie muffler will fit in your overflow box that silence it. I got my at premium aquatics and their ups ground service arrives next day.

[mccorry]

As I stated... I've already installed gurgle busters in The overflow.  There are two 1" lines coming out of the overflow, combining to.one 1.25".line.

[charlieweaver]

Oh does it like do a flushing noise every now and then in to the sump. Sorry trying to understand. If so may be too many 90s going to the sump causing if to build a siphon and then flow faster than your return gph so it then breaks the siphon causing it to suck lots of air in and cause gurgling in the sump.    You can try flex pipe to help or you can try some 45s if you can make it work to get to your sump.   

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[mccorry]

Yeah .... sounds like constant swishing in the piping.... think I've got too many turns...

[charlieweaver]

Yeah that is deffently it. You need to make as little as possible. Flex would be the easyiest way to do that.

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[mccorry]

That's what I was afraid of.....

[lazylivin]

As I stated... I've already installed gurgle busters in The overflow.  There are two 1" lines coming out of the overflow, combining to.one 1.25".line.

A gurgle buster isn't a maggie muffler and neither will achieve complete silence. Regardless of how many 90's or 45's it won't make any less or more noise. Noise comes from air being sucked into the pipe with the water. To remove the noise you need to remove the air. This can be a challenge however complete silence can be achieved. I had same issue, if interested take a look at my build thread and you can see how I dealt with it. My display tank is now completely silent and it is impossible to hear the slightest bit of noise even if you had your ear inches from the overflow. If you were closer I would give you hand because I know how annoying the noise can be.

Flex pipe or PVC can amplify noise well. Clear vinyl tubing is easy to work with and dampens noise much better.

[mccorry]

Can you supply me a link, Lazy?  I've looked for it, but am not sure what thread is your build thread...

Thanks....

[lazylivin]

It started on the page before this but this link takes you to the issue I had that is similar if not same you are dealing with. http://www.ohioreef.com/index.php?topic=8725.msg79045#msg79045

[mccorry]

Thanks, Brian.  Awesome work on that tank, stand, and canopy, btw!!! 

[lazylivin]

I think you have two overflow pipes. If yes you can raise one up higher than the other, say an inch or two by adding a coupling for about $1. Put a gate valve on the lower run to run full siphon by closing the valve (about 5$) (The gate valve needs to be close to the end where it is entering the sump. THen let it trickle over the second one that is a bit taller. Adjust the gate valve so it is just barely dripping over it. The only issue is you would not be able to go from two to one pipe like you have now. It would be a pain to change dead quiet if your noise is coming from air being sucked into the pipes. Do you have an updated shot of the pic below with your piping you added to the overflow box.

[mccorry]

I've got a 1.25" gate valve on order.  I'm going to install it in the horizontal 1.25" pipe (below the one you have x'ed) that goes around back of the stand.

If I can get it to work OK, I plan on adding an additional bulkhead to the side of the overflow box, up high, and running a separate line all the way to the sump.  This would be my safetly overflow line.

[lazylivin]

That should take care of your issue.

[mccorry]

Some updated pictures... ended up changing my piping configuration 3 times.  Finally have a set up that's quiet and reliable.

[lazylivin]

I am glad you got it fixed. Now the fun can begin; stocking

[mccorry]

I hear ya.  Thanks for the help / input.

Started stocking this week... will post some updated photos soon.