View Single Post
  #2  
Old 01/14/2007, 09:51 AM
AllenFord_SC AllenFord_SC is offline
Drunken Member
 
Join Date: Mar 2005
Location: Ridgeland, SC
Posts: 703
Send a message via Yahoo to AllenFord_SC
Will the return pump be in sump or external? The recommended flow through a sump is 3x to 5x tank volume. If this is for your 75 then 225 - 375gph would be a good pump for the return, after factoring out head loss of course.
The CL and return pumps can and probably should be different. You want a closed loop to provide the flow that your return is not giving you so it should be a stronger pump. Remember, there is no head loss on a closed loop so the max rating on the pump is what you will get.
The mag pumps do run a little on the hot side. Pan world, Ocean Runner, Blue Line, and Sequence all make good pumps.
__________________
We're just two lost souls swimming in a fish bowl..... Roger Waters, Pink Floyd