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Old 04-04-2009, 10:02 PM   #11
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I think I got a mental picture of your piping.

You can still do a durso ... Put an elbow on your horizontal intake & turn it up, then attach the T of the Durso to that vertically, making sure you have enough vertical pipe that the top of the T is above the water line. Then attach to the horizontal arm of the T - 2 elbows (& lengths of pipe as needed) to make sure your water intake is under water.

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80 gal FW with 30 gal DIY wet/dry/sump.
9 fancy golds, 1 hillstream loaches, 1 rubber-lip pleco (C. thomasi), 3 SAEs, small school of white cloud minnows, planted.
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Old 04-05-2009, 05:20 AM   #12
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the top part of the T that is above the water line
do i need to cap it off or have it open or what??
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Old 04-05-2009, 02:42 PM   #13
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thats is a really good idea but im afraid my inlet hole is too clos to the top of the tank for that idea 8(
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Old 04-06-2009, 02:41 AM   #14
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The top of the durso T is capped, and you drill a very tiny hole (something like 1/32" on mine) to create a partial siphon. You adjust the hole size so that the water level is at the middle of the T. <That is when the overflow is quietest .... you might have to experiment a bit to get the right size hole .... but the caps are like 10 cents each. <You don't glue it on until you get the hole right!>

If you inlet hole is too close to the top for the Durso T, you might be able to drop that a bit with a U bend. Instead of the elbow on the horizontal pipe being turned up, you turn that down, and make a U below that with a couple more elbows & pipes. That should allow you to drop the Durso down. To prevent floods when the Durso starts, you must have the top of the T below the top of your box, and the horizontal arm of the T higher than your outlet pipe.

If you don't have room for that, there is another system of quieting an overflow. This system requires 2 outlets. You have one lower outlet that is running as a full siphon. (Usually that is a short standpipe, but in your case, you can have a smaller outlet installed lower than your current one.) The lower outlet is chocked down with a valve so that it is draining water completely submerged (no air = no gurgling noise). You must have a higher emergency drain as the water level will fluctuate a bit in this system, and the 2nd drain serves as an emergency flood relief. <I can't find the original site with the pictures ATM .... I can draw you a pic if you are interested in drilling another hole in your overflow.>
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80 gal FW with 30 gal DIY wet/dry/sump.
9 fancy golds, 1 hillstream loaches, 1 rubber-lip pleco (C. thomasi), 3 SAEs, small school of white cloud minnows, planted.
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Old 04-06-2009, 03:08 AM   #15
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shure why not thanks
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Old 04-07-2009, 08:35 PM   #16
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I found the original thread:
Reef Central Online Community - NEW plumbing method for an ULTRA QUIET REEF TANK!!!! LONG !!!!

This is an extensive writeup with pics - notice that his drains are horizontally attached as well:
BeanAnimal's Bar and Grill - Silent and Fail-Safe Overflow System

The 2nd source used 3 drains: a full siphon, a Durso backup, and an emergency. IMO, you don't need the Durso. <The original source only has 2 drains.> It is not too loud to allow a small amount of water to drain through the emergency, as long as you set the full siphon to take almost all of your return pump flow. A Durso to look after that little bit of noise is superfluous.
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Old 04-07-2009, 09:12 PM   #17
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sweet thanks ill shurly be able to get the problem under control now
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