Sump re-design suggestions...

mkarston

New member
I have a 210 gal Reef with about 300lbs of live rock, and currently have the following sump / fuge setup:

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This design, as I've come too realize, is flawed in the following ways:
1.Water drains from the left side directly into the fuge. This causes the fuge to become dirty quickly as detritus settles freely without filtration.

2.The small filter pad above the bio-balls and between baffles are not enough. If I don't change them every 2 days they become saturated and just return the particles back into the tank.

3.Microbubbles. With my current design and only having a 2 baffle setup spaced only about 1.5” apart, microbubles still find there way easily from the Protein Skimmer back to the tank.

4.Return chamber is much too small. Given the water volume and lighting, my tank evaporates around 3 gals of water a day. With a return chamber this small it is very difficult to keep the water in its optimal region.

5.My current skimmer is much to small for my display, and this sump doesn't really leave me any room to upgrade.


I am thinking about changing all of this and redesigning it using a single 75 gal tank:

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Some general comments I already have with this design are:
1.Water from both overflows will drain to a filter sock on the right side of the sump, and work its way down to the return chamber at the left side of the sump.

2.I will have to put my current Skimmer up on a 8” shelf so that it is only in about 8” of water

3.I am not sure I need to put a partition up between the filter sock
and the skimmer (hence the dotted line).

4.I am not sure if this will be too much flow through my fuge, and what the affects of this will be. This is something my previous design gave me control over.

5.I am not sure if its fine to have fully skimmed water go into the fuge.

6.I am not sure if its fine to have un-filtered water travel directly from fuge back into the tank.

Thanks and I look forward to all your good feedback!
Craig
 
The new design looks pretty good.

3. You dont need the partition
4. how much flow?
5. the water is not fully skimmed. There is plenty to "feed" the fuge
6. not a problem

I would strongly suggest an auto topoff system to take care of the evaporation.
 
I think you haven't left enough room for your skimmer. If the measurements are right, it looks only a 8" x 12" space. That's quite small for a 300 display + sump setup.

What skimmer do you intend on using?
 
I estimate I get about 1000gph flow from my return pump.

Another issue, I forgot to list, that I am concerned about is:
The water crashing over the left most baffle into the return chamber. Will this cause bubbles defeating the point of the baffles in the first place? How do you prevent this?
 
Well without a partition, the skimmer and sock share that chamber which is 12" x 18". A new skimmer is on the list of things I would like to get; right now I have a Octopus NW150 (it was from my old tank which was smaller) and can't yet afford to buy a new one.
 
ok.... I have taken some time and thought through various scenarios this is what I've come up with.

Basically with this I can control the flow through the fuge as I will use a pump to feed it, and allow it to drain back to the first large section of the baffles. I also like this design as it gives me a 23gal fuge, about 10 gal return section, and a large initial section to house the skimmer and filer socks. As well where the water finally lets out of the baffles is far away from the back wall where my return pump will be plumbed; this should prevent any bubbles at all from reaching my display.

Thoughts?

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Not yet.... I have the 75 gal tank now, but am waiting for my diamond hole saw to arrive. Once I successfully drill the tank then I will order the PVC sheets I need for the partitions. Stay tuned...
 
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