Tank 2.0 RUGF/Pressure system

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dawnmarie

Feeder Fish
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Sep 21, 2009
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California Delta
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Thought I'd throw this out there for comments.
Remodelling my 240 to reduce maintenance and improve reliability.
Self Imposed restraints :
Must be silent
No exposed plumbing in tank or room
Redundant systems
Re use existing equipment as much as possible

After much research I have decided to go with an RUGF in the tank and an all pressure system for external filtration. I am constructing the drain to accommodate a sump if I ever decide to go that direction,but, for this round it is not an option.
Cuerrent equipment in stock for use/reuse:
2-Little giant MD 5-SC Pumps
2- 250 watt inline heaters
2 Red Sea Ocean Clear 325 canisters

The RUGF (see drawing) borrows from a Chompers design while meeting my need for no exposed plumbing.
The drain(see drawing) is designed to gravity feed 2700 GPh as per the sticky on pipe size and flow rates (thanks to the author). The pumps rate 950 GPH @ 3' times two for 1900 GPH giving me a 8x turnover. I also have a 24/7 water changer (my unchlorinated well water needs no conditioning for my Mbuna). I have a backup generator with an Automatic transfer switch as the power goes out at least once a week.
I included a photo of the tank "as is" to illustrate the space constraints (the curtains are normally closed behind the tank and the windows never receive direct sunlight). I'm also changing the tank background to black.
So the question is what else can I do to make it bulletproof ?
Any ideas for improvement or enhancement ?
Think outside the box, I want to be able to leave for a week and not worry about it(if that's possible).

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I didn't plan on check valves but that's not a bad idea on GP. The beauty of a closed loop pressurized system is that short of a broken pipe or some other breach in the system there is nowhere for the water to go. I do think i'll add the check valves though just in case.
 
Will the canisters be pumping independently of the closed loop system? If not, how will they be incorporated? I assume they are going to be your main mechanical filtration?

Looks good to me! Nice setup as well. I really like the background the tank has on it right now, makes it look deeper...
 
Conner;3866693;3866693 said:
Will the canisters be pumping independently of the closed loop system?
The canisters will be my only source of mechanical filtration. The Ocean Clear's have no internal pump. The two MD5's will produce all the flow with one pump per canister. If you look in my gallery there is a photo of the similar system I am currently running.

Looks good to me! Nice setup as well. I really like the background the tank has on it right now, makes it look deeper...
I like it to, but it's a little too bright under the TV.
 
Is the tank glass or acrylic?

I would be concerned about drilling 8 holes in the tank in a line like that, you may be creating some sort of a stress fracture line. I am not sure if you may be better off with fewer but bigger bulkheads. I like the closed loop sytem, and i use it in all my setups. I have drilled all but 1 of my 5 tanks, (125,75,55,40) putting 3 - 1 7/8" holes in each, but 8 holes would make me a nervous wreck.

Also the tank is kind of close to the wall, i guess if you have a leaky bulkhead fitting you can adjust it from the top of the tank.

If the tank is acrylic you may consider plumbing through the bottom. just to give you more accessibility.
 
As far as a stress fracture, is that likely in acrylic ? I have done this before in other applications just not in an aquarium. If a hole is drilled clean and chamfered it usually lives. I may need to give some thought to supporting the weight of the piping to take the strain off the tank. The tank is already drilled in the bottom x4 for the current UGF and I will be plugging two and using the other two for supplying air to the airstones.
Glad to hear I'm not reinventing the wheel with a closed system.
The tank needs to be close to the wall given the shape and size of the room.
I don't want to sound like a jerk but a properly installed bulkhead fitting doesn't leak. I have considerable experience with these fitting in a a marine (think boat thru hull) application. The trick is preparation and don't get in a hurry.
Thanks for the reply
 
hmt321;3867172;3867172 said:
I like the closed loop sytem, and i use it in all my setups. I have drilled all but 1 of my 5 tanks, (125,75,55,40)
Any chance of seeing a picture of your setups ?
 
I love the idea, but not too sure how well your design will flow... Its perfect in theory, but those pumps will lose substantial flow by having to push thru the canisters, then up thru all that PVC with 240G of water pushing back down on it. Again, I imagine it would work but I think you should expect the pumps to flow like there's 9' or 10' of head.
 
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