LOUD overflow.

[E.intheC]

Have a couple quick questions.... basic gist.. my plumbing is LOUD.

It gurgles, there's lots of bubbles, and it just sounds loud overall. I have a Marineland Utility Return Pump, turned down to about 200-300gph.

Tank is 15 gallons, 19x13x13in high. Same tank used as sump. There's about 4 ft of head loss due to pipes/elbows/distance.

I have some pictures (excuse the mess in the apartment.. we're moving and my wife said I've been taking too much time on the tank over the past few days :spin2:

http://i660.photobucket.com/albums/uu321/EricFish1234/026.jpg

http://i660.photobucket.com/albums/uu321/EricFish1234/017-2.jpg

http://i660.photobucket.com/albums/uu321/EricFish1234/022-1.jpg

..and finally.. a video ;) (It's not this loud anymore)
http://i660.photobucket.com/albums/uu321/EricFish1234/th_027.jpg (http://s660.photobucket.com/albums/uu321/EricFish1234/?action=view&current=027.mp4)

[E.intheC]

As for solutions.. well.. I have cut the piping into the sump so it's not creating so much back pressure.

I turned the Return pump down quite a bit, and it did work a bit. However, it still makes noise at the overflow section (gurgles every now and then) and makes much too much noise at the waterline of the sump.

I'm considering the following:

-increasing the air hose diameter to allow more air in.
-adding a T and additional piping to the bottom section to reduce noise/air bubbles that way

[Acrotrdco]

Try google "durso standpipe".

[E.intheC]

It's more than just a durso standpipe.

I've actually searched and read quite a bit on here. My bulkheads are leaking a bit. Huge PITA.. especially at this stage.

[JustDisGuy]

Here's a couple of interesting threads on the subject I've been reading today:

The original: http://www.reefcentral.com/forums/showthread.php?s=&threadid=344892&perpage=25&pagenumber=1

The refinement: http://reefcentral.com/forums/showthread.php?t=1310585

[E.intheC]

thank you for the links. I think the herbie/beananimal methods are nice, but more directed at larger tanks. I don't have enough room to drill 4 holes in my tank.

It's still good reading, none the less.

[JustDisGuy]

What happens if you plug off that air tube sticking out the top of your drain line? Any change in the sound?

I'd be tempted to try putting a gate valve in the drain line and plugging off that airline.

[sneaton]

filter sock?