recommendation for a good closed loop pump

BRETT FULFORD · #1 07/17/2005, 12:06 PM

i have to upgrade my water movement on my 120 gallon. right now i have a 1200 gph mag drive pump in my sump and a maxijet 12oo in the tank. as i see it i have 3 options, 1 - buy a higher gph sump pump and use the 1200 for a closed loop or 2 - buy a tunze for the display tank or 3 - buy a new pump specifically for a closed loop.
the main difficulty that i have is that my tank is framed in and it might be difficult to run more plumbing below into the cabinet. i might be able to locate the pump above the tank & have the inlet inside the overflow , but would this be dangerous because of the possibility of leaks, or that it might run dry?
not sure what to do.

moosejac · #2 07/17/2005, 01:09 PM

I think you'll run into some prob's with some pumps running above the tank. Sounds like your best bet would be to add a couple of Tunze's (or Seio's....they're much cheaper) and be done with it.

danferd2002 · #3 07/17/2005, 02:47 PM

I like MAG pumps they are quiet and reliable

BRETT FULFORD · #4 07/17/2005, 06:43 PM

has anyone tried putting a pump above the tank?

RonD · #5 07/17/2005, 10:34 PM

if you put your pump above your tank .. you will loose performance as it takes alot out of a pump to suck water rather than push it.. most are not made to do what you are speaking about and you end up wasting energy in a big way. Plus you will need to prime your pump every time you loose suction IE your power going out, micro-bubble build up inside you pump.. its just not a great idea if you can help it all round. if you place your pump right next to your main display tank, pump the water up hill from there... you will be in better shape and you could never loose prime.