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Degassing Columns for getting oxygen into the water http://byap.backyardmagazines.com/forum/viewtopic.php?f=1&t=4922	Page 1 of 1

Author:

DanDMan [ Feb 10th, '09, 23:00 ]

Post subject:

Degassing Columns for getting oxygen into the water

Has anyone seen these?

They are degassing columns. Looks like a good product for getting oxygen into the water. If the water returning to the tank was passed through these we could be sure there was plenty of oxygen.

1 Segment, 76% DO
2 Segments, 84% DO
3 Segments, 89% DO
4 Segments, 92% DO
5 Segments, 94% DO

I found them here: http://www.aquaticeco.com/subcategories/3681/Degassing-Columns/degassing%20column/0

Currently I have a film of water to pick up oxygen and noting else.

Attachments:

File comment: Thin film of water to collect oxygen.

AirNWater.jpg [ 68.75 KiB | Viewed 1572 times ]

Author:	RupertofOZ [ Feb 10th, '09, 23:09 ]
Post subject:	Re: Degassing Columns for getting oxygen into the water
Koi keepers use exactly the same principle... called Bakki Showers... Attachment: bakki_installed (Medium).jpg [ 36.66 KiB \| Viewed 1564 times ] Filled with media... they also provide filtration... Attachment: Bakki-Filters-bottom-20holes (Medium).jpg [ 68.43 KiB \| Viewed 1565 times ] They're basically a "trickle tower".... but do suffer some evaporative loss... On the other hand... they can provide a degree of "cooling"... and (as above) filtration... I use a single half drum in my mega system... Attachment: 100_1488 (Medium).JPG [ 82.87 KiB \| Viewed 1557 times ]

Author:	RupertofOZ [ Feb 10th, '09, 23:13 ]
Post subject:	Re: Degassing Columns for getting oxygen into the water
With your existing outlet Dandi... you could increase the oxygenation by drilling a hole in the elbow... inserting a 4mm tube, glued to the top of the elbow (downward)... The "venturi" effect of the water drawing the air through the tubing "straw" adds considerably more oxygen...

Author:	RupertofOZ [ Feb 10th, '09, 23:19 ]
Post subject:	Re: Degassing Columns for getting oxygen into the water
You can see the affect in the pics below... With the tubing blocked (no venturi)... the water flows "clear"... Attachment: 100_2246 (Medium).JPG [ 94.86 KiB \| Viewed 1572 times ] With the tubing open, the venturi effect sucks in air... as can be seen by the disturbed "milkiness" of the water flow... Attachment: 100_2247 (Medium).JPG [ 97.14 KiB \| Viewed 1572 times ]

Author:	DanDMan [ Feb 10th, '09, 23:54 ]
Post subject:	Re: Degassing Columns for getting oxygen into the water
Good info Rupe! I do not have a full pipe of water so I am not sure how much if any air I can suck in. This pump is moving 700- 800 GPH; its only 40 watts. Now, when I start circulating out side again then I can do that.

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