6'x12'x30" basement pond... how too?

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MonsterMinis

Feeder Fish
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Apr 28, 2009
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Hubby and I have been talking well.. since we met talked about doing this.. and now we are finally ready to actually start this project... we're just abit divided on how to go about building this thing. we've decided to either go with a wooden stacked frame system or cement block... I've seen both in person, and like the cement more.. but the wooden one appeals as it can be easily removed if/when we ever move.

we have a typical older basement.. cement slab and block walls. it's semi-finished has been framed out along the walls and had some cheap sideing boards nailed up...

the basic idea is to build the pond in one corner of the basement near the stairway... and utilize under the stairway into where the laundry area is to hide the filtration and run everything threw the "walls" to and from the pond.. no holes in the pond itself.. a cut-out for an overflow at the top.. and a return pipe... simple no muss no fuss.

from what I understand useing block we can stack and cement.. and then coat the entire floor and sides with another layer of cement ( how thick?) and coat the cement with a fish safe paint ( I've done some research and like the max cr line.. would it be applicable here?) ... are we going to need re-bar and to worry about the structural intergity? and are we going to have to try and tie into the basement floor itself? these are my main concerns with going with cement block.
 
I'd rather go with a pond liner, much easier. Just make sure you do something about the humidity. You don't want mold growing in your basement. Get an air exchanger or run a dehumidifier.
 
I would love to be able to do a liner but the pond will hold large catfish, rays, and gar... I am worried about puncturing a liner. we're not really concerned about "doing it cheap" we're more worried about haveing to fix a leak or re-building, once it's built i don't want to have to mess with things unless we need to. humidity hopefully won't be a major issue as we do plan on "capping it" with acrylic sheets and do have a dehumidifier already in the basement over-rated for our house.
 
I am in exactly the same boat. I will be keeping an eye on this thread. Mine will be 10x6x2 and i was thinking of using pond liner and "hanging" 2 ft tiles around the sides to prevent punctures but I wasn't sure how well I could fold the liner so nothing was trapped behind the tiles.
 
Pond liner will hold up really well to any abuse and work perfectly

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I would love to be able to do a liner but the pond will hold large catfish, rays, and gar... I am worried about puncturing a liner. we're not really concerned about "doing it cheap" we're more worried about haveing to fix a leak or re-building, once it's built i don't want to have to mess with things unless we need to. humidity hopefully won't be a major issue as we do plan on "capping it" with acrylic sheets and do have a dehumidifier already in the basement over-rated for our house.
Pool liners strong, I really don't think they could poke holes in it. I've seen people use it with cats and other lager fish, I don't really see why you would have to worry about the rays as well.
 
Pool liners strong, I really don't think they could poke holes in it. I've seen people use it with cats and other lager fish, I don't really see why you would have to worry about the rays as well.
Not all pond liners are created equal, but a good 45 mil pond liner is puncture resistant.
 
I am working on a 8' by 4' by 32" I am using a pond liner but am having a lot of trouble finding a glue to bond the pond liner to the glass. all the glues like to bond to the glass but not the PVC pond liner. I am using this one in Blue http://www.pondliner.com/p-1123-11-x-14-pvc-pond-liner.aspx
 
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