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It was a real pleasure to meet so many club members at the swap. Brian and every one involved did a fantastic job of organizing. At least as good a job as the vendors did in releaving me of every dollar I had in my wallet
Here's a pic of the Marco Rocks I hand picked at the Frag Swap. I am still just buzzing about how great an event NJRC put on. Having vendors like Marco Rocks and the chance to hand pick these beautiful pieces of rock is just fantastic!
I hope to peg together an arch something like this then seed and cure it with some established rock for a few months for use in my 220 project.
I also got a few pieces of ledge that I hope to work into a background piece some how.
Here's a rough schematic of my planned wet room upgrade. It's real basic and shows no valves or extra vessels like, QT or water change tanks.
My plan is to get the wet room done and allow any mini cycle to pass ( at least I hope it's a mini cycle) and then set up the new tank, cycle it independantly and then connect it to the system.
Looks like a good plan Bax. One thing I don't see (and you may not necessarily need) is a port used to divert excess flow back to the sump. By the looks of it, you have those 2 pumps feeding a lot of systems so it may not be an issue. You do have an used port so you could probably use that one if you find you need it.
One question, is that a second skimmer being fed by the drain line from the 220 (just below and to the right of the chiller)?
Exactly, the MR-4 will be gravity fed from the 220. I am planning this as there will be lots of fish poo in the 220 compared to the 120 reef with the large angels and a few tangs too. The ASM G4 will be insump to skim the 120 and then some.
There will definitely be an excess return to the sump from the manifold and at least one spare maybe two for things yet to come ;D
since the two return pumps (Dart & Baracuda) are joining to the same return pipe - would it possible be cancel out some force and *may* end up with less output flow??? probably with a flow meter to test them out?
Before building the manifold, I will do some proto types and see what configuration gives me the most flow. The driving idea is one, enough flow, but two, and most important, redundancy. So, if one fails, there's at least some flow.
I will also post a more detailed flow diagram with valving details before the final build. I still have lots of fabrication to complete on sumps, fuges and such.
I'll be interested in hearing the results of your tests. I'm just stitting here wondering which option would be best. I don't think you'd want two pumps Teeing into one return line to the manifold. You could try to have the two pumps return to the manifold independently so that each one goes into its own port. Still another option would be to have the larger pump feed into the smaller pump and then have that one go into a single port on the manifold. The last option *sounds* like it would get you the most volume into the manifold but that's just a hunch. I'm looking forward to hearing what you try and how it works out.
I have to research options. I know I have seen good discussions on the topic of multiple return pumps in several places ... just can't recall exactly where?
My first thoughts have been to run a line for each into the manifold, one on each end of the manifold. All the out lets would be in between and the pressure from each pump would go where it is diverted to first, in theory. I suppose I should have drawn it that way ... I am no CADD guy, sketch up baffles me and even MS Paint (used here) gives me fits .. give me a pencil, a ruler, & some graph paper any day!
I am sure I have seen applications where pump A feeds pump B as you suggest, but I can't recall if in that application, they are the same size pump or not (but I think they were). I do have two Darts and thought of doing them together that way, But I wanted just a bit more flow so I am hoping the Cuda will work with a Dart in this application.
If not, I may have to find another Cuda ... I'll save the Darts for needle wheel applications
Don't feel bad. I'm in the same boat too. I need to increase my return rate and my Sequence is maxed out.
What I'm thinking of doing is running two pumps in parallel instead of in series. I might try and use the second pump to divert a few "internal circulation" things first to gain some additional pressure on the returns first and see if I can get enough out of it before going parallel.
I'm following this thread to see how you make out!
I would think that with both of the pumps feeding the same manifold you would have some clashing of the flow. It seems to be that it would cause some turbulence when the outfeed of one hits the outfeed of the other looking for that "path of least resistance".
I'd personally like to see it broken into 2 manifolds, even if they had redundant purposes. I wish I could think of a good way to test it that wasn't going to be a tremendous waste of PVC!
Being a driller, I install PVC wells all day, every day, all year, every year.
PVC ... I got plenty of :
For a testing ground, my thought is to use a 150 g Rubber Made stock tank to connect the pumps to and then run different configurations back into the tank using a simple flume(an open horizontal pipe) just shooting back into the tank. The configuration with the greatest flow wins.
I am inclined to think that if I feed the manifold from the two ends, and the manifold is long enough and large enough in diameter (3" min maybe 4") there will be little tubulance, certainly pressure (more acurately, more or less head loss), but that should flow out the many ports that will be demanding flow. The ports with the highest "want" for flow will be placed towards the Cuda end of the manifold that should lessen the presure on the Dart.
You will have two inputs into the pipe (two pumps) and multiple outputs ("ports") from the pipe. So what is the point of pushing everything through that one pipe? Just simply create two separate lines, and you can have multiple advantages - redundancy, increased flow and possibilty of creating surge effects.
I am not so sure I am looking for enough flow to run any type of surging. I run about 375-425 gph to my 120 as return flow now (a QO 4000), let's say I kick that up to 500 or so. I am probably looking in the order of 650 to 750 gph max return flow to the 220. I just don't think the Cuda has enough to kick the 1250 gph of return flow to two displays against 5' of head to the 120 and over 7' of head to the 220, plus all the frictional loss through the manifold, and service the chiller, frag tank, fuge etc. I think the Cuda will be right on the edge if run by itself. Having the Dart running assures good flow and gives me a backup pump. I just don't see a benfit to running two lines to every end point in the system, too complicated. No?
I should mention that circulation in the 220 will be handled by 3 x Tunze 6100 and a VorTech. The 120 uses 2 x 6100s and a VorTech.
... and thanks for everyones input, it is very helpful to hear all ideas and discuss pluses and minuses.
Maybe I should just run the Cuda through the manifold and run the Dart as a seperate additional return? But, then I loose the redundancy through the chiller. It gets very hot in my office during the summer months.
I lie awake, thinking about this stuff ... it's crazy!
I enjoyed following the prigress of your 120 and looking (with envy ) at those beautiful corals and that Squammy clam. Also am following the discussions re your new plans. As one with a conservative approsch who uses the simplest of setups (due in part to limited tech know-how & space limitations), I kind of like Mlad's thinking. Your concern re a lack of chiller backup could be handled in either of 2 ways...1)Run a tee off the Dart to the chiller so it doesn't just provide a second return, or...2)room permitting, place a drop-in type chiller alongside the sump set to go on at a higher temp than the main chiller. This obviously requires the expense of a second chiller but it offers a fully independent backup and given its intended limited use, it need not be as powerful as the main chiller.