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Joined: Aug 2005
Posts: 39
Lunker
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OP
Lunker
Joined: Aug 2005
Posts: 39 |
I have a 1.25 acre excavated sandpit pond. The average depth is 15ft, with some sections 20ft deep. I am in a low lying area on Maryland's Eastern Shore, and the pond is filled with ground water.
I'm curious about the feasibility of keeping rainbow trout in cages during the summer, utilizing a small pump to pump water from the cold, deep pond bottom into the cage. Could I use a venturi valve, a spray bar or other means to off gas anything bad and oxygenate the water as it enters the cage. I'm guessing there is a magic flow through volume that would provide sufficient cold water to keep the fish alive, yet be slow enough to not completely mix / de-stratify the pond.
Thought?
Brian
Last edited by Pot Luck Pond; 05/05/14 01:30 PM.
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Joined: Aug 2002
Posts: 20,043 Likes: 1
Hall of Fame Lunker
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Hall of Fame Lunker
Joined: Aug 2002
Posts: 20,043 Likes: 1 |
One of our Canadian members did what you are proposing. Hopefully he will chime in.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.
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Joined: Jan 2009
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Ambassador Field Correspondent Hall of Fame Lunker
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Ambassador Field Correspondent Hall of Fame Lunker
Joined: Jan 2009
Posts: 10,458 Likes: 2 |
I would think you would need more volume to your pond to pull this off. I am far from an expert though.
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Joined: Jul 2008
Posts: 697
Hall of Fame Lunker
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Hall of Fame Lunker
Joined: Jul 2008
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Is your pond aerated? If it's not I would install one and put a diffuser in a deep part of the pond. You have to follow the proper start up procedure though. It would be more beneficial then just pumping bottom water up. IMHO
"I think I have a nibble" Homer Simpson 34ac natural lake
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Joined: Jul 2008
Posts: 82
Lunker
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Lunker
Joined: Jul 2008
Posts: 82 |
I tried it last year with my Brookies in my ground sourced pond last year and couldn't keep the temperature under control even pumping in 5-8gpm of well water. I had ran the water thru a degasser system which also bumped up the oxygen level and actually decreased water temps but it was still no use unfortunately. I landed up buying a 500 gallon tank and moving them in doors and sure glad I did...I used less water and the growth was amazing!!! Search a few of my older posts and you will see my setup....going even bigger this season Ryan
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Joined: Aug 2005
Posts: 39
Lunker
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OP
Lunker
Joined: Aug 2005
Posts: 39 |
Thanks for the Replies everyone.
Ryan, was your first attempt in a cage in the pond? I'm wonder now if I could instead make a small plywood above ground raceway. I could line the raceway with foam insulation board to minimize heat gain. I could also cover a portion of the top with foam board and shade cloth.
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Joined: Jul 2008
Posts: 82
Lunker
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Lunker
Joined: Jul 2008
Posts: 82 |
it was my first time trying it with the cage. I also ran the well water thru a degasser system prior to entering the cage. I also covered the cage with foam and skirted the sides about 2 feet down into the water. In the end it was no use! I spent less than $500 and had about the best system possible for my Brook Trout for the 3 months they were in the tank in one of my out buildings and growth was amazing! I also was able to use a lot less of my well water/hydro by doing the tank setup and this year I will be adding an even larger pressure tank for my re-circulation system and will cut the hydro bill down even further!
Ryan
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