Sump flow help

[jgsensor]

I am planning a sump remodel and will be switching to external pumps if all goes well. I have a 375g tank and sump volume will be around 100g. I am planning on using a dart for the returns, but i am debating on what pump/pumps to use for some other reactors and chiller I need to connect. I have never ran a dart so I am not familiar with the actual flow of these pumps.

I was wondering if anyone with experience can chime in on this. I have 4 returns to the tank which I was going to run with the dart. I need to hook up a MRC phosphate reactor, MRC calcium reator and a Deltec Eco-cooler(this will be a 20ft run with about 3ft of vertical lift and needs about 500gph flow rate). Could I run a second dart to the cooler, reactors and maybe 1 or 2 returns and use the other dart for the other 2 or 3 returns or will it be too much flow?

 

[mflamb]

I'm going to tag along for the answer. I will be using a Dart return pump and plan on t-ing off of it for calcium reactor and phosphate reactor. It seems to me that the reactors require so little flow that is should be no problem. I don't know about your chiller.

 

[VikeBron]

How far from the sump to the returns? You may want to go up to a barracuda or even a hammerhead and split the flow for all the extras.

 

[jgsensor]

The sumps and return pumps will be mounted in the stand under the tank so maybe 2-3ft. I have a barracuda also, but I am trying to stay away from it due to high energy usage. I am considering running 1 dart for all the returns and seperate mag pumps for the two reactors and the ecocooler or 2 dart pumps split up between 4 return lines, 2 reactors and the eco-cooler. The reactors will take very minimal flow and the eco-cooler needs around 500gph flow it is a 20-25ft run with a 3ft vertical lift.

I think the darts will handle this, I just wonder if it would be too much flow. I would have to use ball valves to control the flow to the reactors, but I just don't know if this would be too much flow.

I will have to get exact distances so I can figure out the flow a bit better.