pump selection

[Phxkeller]

Im Looking for input or experience with pump choices.

I am currently setting up a 180 gallon (6x2x2). It has 1 corner overflow (leftside) with a 1.5in drain and 1in return w/1in return on the Right side (no overflow).

In the center I have a 1.5in drain and approx 12in to each side a 1 in return for a closed loop system.

I bought new panworld pressure rated pumps @ 1190gph and was very dissapointed with the return amount. Don at TT was willing to trade them out for me for something else.

I am now looking into the Sequence Dart pump rated 3600gph (2820gph @4ft) Don said this may not work for my use due to it not being a pressure rated pump..

Can anyone let me know what they use ?

P.S. The metal stand I made is like 42in tall so I have like 4-5ft of head pressure to over come.

THANKS IN ADVANCE !! (Yes pic junkies I will post some later)

 

[mflamb]

I'm using 2 Darts on closed loops and 1 for sump return. Check out the sponsor forum and look in Reeflosequence threads.
Mike

 

[WDLV]

I have a 210 (same footprint as yours.) I have two Sequence Reeflo Barracudas running my closed loops. I have a 2" intake and three 1" outputs for each CL. You could use a 1.5" intake and would be fine. The pump intake is 1.5".
If you want to go that route, I would recommend one Reeflo Barracuda or one Reeflo Hammerhead (pressure rated) and use an Oceans Motions 4 way or 8 way... or an actuating ball valve to randomize the flow.
The only complaint that I have with these pumps is that when I have both pumps running I have to watch the ambient air temperature or the tank temp can go into the mid 80s.
Good luck with it.

 

[naterealbig]

P.S. The metal stand I made is like 42in tall so I have like 4-5ft of head pressure to over come.

Just so you guys know, if it is a closed loop, and it is sealed (i.e. - there is no openings to the atmosphere) then the height of the pump (or stand) will have VERY little affect on the total pressure head losses in your system. (See burnoulli's equation if you have questions). If you need more flow, and don't want more heat or to have to pay for a larger/more expensive pump, here a a couple things you can try.

1. Increase the diameter of the pumps input and out going line. Increased pipe diameter = less friction losses.

2. Use flexible pvc piping to plumb the loop. 90 degree bends dramatically increase head losses.

If I can think of anything else, I will post. hth

 

[WDLV]

<a href=showthread.php?s=&postid=8600393#post8600393 target=_blank>Originally posted</a> by naterealbig
Just so you guys know, if it is a closed loop, and it is sealed (i.e. - there is no openings to the atmosphere) then the height of the pump (or stand) will have VERY little affect on the total pressure head losses in your system. (See burnoulli's equation if you have questions). If you need more flow, and don't want more heat or to have to pay for a larger/more expensive pump, here a a couple things you can try.

1. Increase the diameter of the pumps input and out going line. Increased pipe diameter = less friction losses.

2. Use flexible pvc piping to plumb the loop. 90 degree bends dramatically increase head losses.

If I can think of anything else, I will post. hth

Good points. I use both a wider diameter intake and flexable PVC. But the flexable PVC was mainly to make my life easier while plumbing.