640gal tank project

Egon

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Jul 4, 2007
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Tempe AZ
broken;3976999; said:
Ok, i just got back from looking at a 640gal tank and i finally decided to buy it. it has filtration on it but is under powered and the sump is under the tank. due to the 48'' height of the tank I have decided to go with a custom overhead filter so i can bring the tank closer to the ground making it easier to do matanence.

Heres the plan,
the stand will be 8ft long x 4ft deep x 2ft tall (I have to do this this week because im going pick up the tank next weekend)

my filtration was originally going to be 2x mag 18 pumps conected to 2x 45gal rubbermaid containers and 2x FX5s but i decided to go with 3x mag 18s with 3 x 45gal rubbermaid containers stuffed with polyfill and scrubbies.

I will build a hood with lighting (not shure what lighting yet)

next to this setup i will be building a stand and sump for my 100 gal(which will become my growout tank)

above the 100gal tank will be a 55gal hospital tank

behind the 55 gal tank will be a 150 gal rubbermaid stock tank for preconditioning and heating water for waterchanges, I know this part is not nessesary but i dont have any hot water near where this setup is going to be. I will use the old pump to get the water into the tanks.

I will post pics as i go.

Feel free to comment on any suggestions or concerns you may have on this setup.:)

I'm setting up a 44" deep tank right now (360 gallons). I use to have this tank up and running at another house. I'm just finding the time now to get it set back up. Some of my learnings with a deep tank: They suck! LOL
They look great but absolutely suck to maintain.
2' stand, great idea. Go as low as you can but still be able to get to your filters. 2' is about as low as possible.
I have "bio tower" on one side of the tank to utilize that hight to my advantage. The waters surface is almost 6', yours will be higher! That drop to the sump can be used for great wet/dry bio filtration. The bio tower can be made of anything, my last set up I stacked 5 gallon buckets on top of each other (ghetto style). I drilled holes in the bottom of the buckets and filled them half to 3/4 with bio balls. Then just stacked another bucket on top. You can also use a very large diameter PVC pipe, something like 8". Fill that with bio balls and run the water down that to your sump.
Sump: Your sumps have to be connected somehow. There's no way around it. I have separate sumps on one of my tanks and I connected them with 1" tubing. It works great. It's just needed to keep the sumps at the same level not much water flows through the tubing because I'm using the same pumps in each sump. But they have to be connected or eventually one will over flow and one will run dry.
The major disadvantage to separate sumps is your vulnerable to pump failures. If either one of "my" pumps goes out or in your case if just one of your three fails, then your hole system is down. So you have 3X the chance of a failure. Let me explain: If one of the pumps goes out the good pump will empty it's sump and the bad sump will over flow. This happens even if they are connected unless they are connected with a very very large pipe. Then you would basically have one sump. Test it out when your all set up. Shut one pump down and wait an hour.
My advice is avoid the multiple sump system. If you have to use multiple sumps keep an extra pump on standby.
Sorry that was so long, hopefully you get some good info there.
 

broken

Feeder Fish
MFK Member
Oct 6, 2009
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Louisiana
Egon;3998346; said:
I'm setting up a 44" deep tank right now (360 gallons). I use to have this tank up and running at another house. I'm just finding the time now to get it set back up. Some of my learnings with a deep tank: They suck! LOL
They look great but absolutely suck to maintain.
2' stand, great idea. Go as low as you can but still be able to get to your filters. 2' is about as low as possible.
I have "bio tower" on one side of the tank to utilize that hight to my advantage. The waters surface is almost 6', yours will be higher! That drop to the sump can be used for great wet/dry bio filtration. The bio tower can be made of anything, my last set up I stacked 5 gallon buckets on top of each other (ghetto style). I drilled holes in the bottom of the buckets and filled them half to 3/4 with bio balls. Then just stacked another bucket on top. You can also use a very large diameter PVC pipe, something like 8". Fill that with bio balls and run the water down that to your sump.
Sump: Your sumps have to be connected somehow. There's no way around it. I have separate sumps on one of my tanks and I connected them with 1" tubing. It works great. It's just needed to keep the sumps at the same level not much water flows through the tubing because I'm using the same pumps in each sump. But they have to be connected or eventually one will over flow and one will run dry.
The major disadvantage to separate sumps is your vulnerable to pump failures. If either one of "my" pumps goes out or in your case if just one of your three fails, then your hole system is down. So you have 3X the chance of a failure. Let me explain: If one of the pumps goes out the good pump will empty it's sump and the bad sump will over flow. This happens even if they are connected unless they are connected with a very very large pipe. Then you would basically have one sump. Test it out when your all set up. Shut one pump down and wait an hour.
My advice is avoid the multiple sump system. If you have to use multiple sumps keep an extra pump on standby.
Sorry that was so long, hopefully you get some good info there.
You are 100% right on the sump thing if its going to be the usual sump setup but with overhead sumps there is no worry of overflowing of the sumps due to one failing because there will be no gravity to keep feeding the sump when one goes out. The water has to be pumped up to the sump and gravity feeds it back into the tank.
Its basicly a cross between a sump and a hang on back filter.
 

Egon

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Jul 4, 2007
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Tempe AZ
broken;3998405; said:
You are 100% right on the sump thing if its going to be the usual sump setup but with overhead sumps there is no worry of overflowing of the sumps due to one failing because there will be no gravity to keep feeding the sump when one goes out. The water has to be pumped up to the sump and gravity feeds it back into the tank.
Its basicly a cross between a sump and a hang on back filter.
LOL none of my post was valuable. Yeah the over head sump system is perfect for a multiple sumps! It sounds like your all set! So......post up some pics :headbang2
 
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