View Full Version : drain and return sizes closed loop

09/16/2008, 09:16 AM
60 gallon tank.

I am thinking MAG18 on closed loop w/ scwd and a MAG9 on the return from sump...both with gate valves.

2 Standpipe drains: what diameter?

2 returns for each pump: what diameter?

09/16/2008, 10:15 AM
shoot...can I even run a closed loop off a standpipe?

09/16/2008, 02:26 PM
Your tank is going to run hotter than the dickens, Mags are notorious heat producers and not very efficient.
Why not use much more efficient prop type pumps like Koralias or Seios and hide them behind the rock work. A K-4 uses 12 watts and a Seio 1100 is about the same and both move much more water per watt so create less heat and keep the power bill down.
For a return pump I would consider a Ocean Runner 3500 or an Eheim 1262, both are much better pumps and the OR is probably about the same cost or cheaper than the Mag 9. Both your tank and your wallet will thank you.