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Drain design question
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ewaldsreef View Drop Down
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    Posted: May 27 2006 at 1:55pm
    Were the drain goes into my refugium I alway get a lot of air bubles. This creates a tiny spray that splashes all around and gets on everything. What is the best way to direct the water so this doesnt occure ?
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Kyle View Drop Down
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put a ball valve on your drain line and restrict it until your overflow suspends enough water in it to not let any air bubbles through the pipes
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Dion Richins View Drop Down
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Filter sock
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gate valves are great, but if you can live with a filter sock, so be it.
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ewaldsreef View Drop Down
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Points: 3752 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ewaldsreef Quote  Post ReplyReply Direct Link To This Post Posted: May 28 2006 at 11:35am
These are all solutions but what I am looking for if it is possible is a way to desing the pvc in a way that it reduceses the spray. If that is not possible I may need to install a gate valve because I dont have room for a sock
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My drain has a 45 degree elbow at the end with the elbow just barely submerged.  This keeps it quiet and minimizes bubbles.  But I also use durso standpipes and dursos work by sucking in air so there will always be bubbles if you're using a durso.  I still get a lot of spray in this side of my sump caused by all those bubbles popping at the suface.  Not sure if there's a way around that.



Edited by jfinch - May 28 2006 at 12:08pm
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Dion Richins View Drop Down
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Points: 11664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dion Richins Quote  Post ReplyReply Direct Link To This Post Posted: May 28 2006 at 12:19pm

I have two drains in most tanks. 1 to the filter sock the other into the refug. to feed it. The one to the refug. makes a turn when it enters the water and I grow the cheto around it. That acts like a natural cushion for the bubbles.



Edited by Holdencraft 33 - May 28 2006 at 7:16pm
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Mark Peterson View Drop Down
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I found a similar solution as John and Dion with a curl of drain pipe at the bottom and Chaeto wrapped around it. Chaeto is an excellent bubble disperser. You are welcome to visit to see how it works.

Edited by Mark Peterson - May 28 2006 at 4:49pm
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