What should turn over rate?

Gangous · 06/02/2011, 03:05 PM

I have a 75 gal with built in center over flow and 15 gal sump I feel my turn over is to slow I use a 700 gph return pump but the nozzle that returns the water to display really slows the flow should I remove it

cloak · 06/02/2011, 03:09 PM

Slow works. Fast works too. As long as it's working... Check this out.

http://www.advancedaquarist.com/2003/4/beginner

ashton1881 · 06/02/2011, 10:46 PM

remember head loss, factor in how much gph will be lost on the return from you sump to the display. Depending how far away that area is will make a difference in how much gph you are actually getting on your return. You can use the head loss calculator on the home page of this forum

http://www.reefcentral.com/index.php...oss-calculator

Kerreefer · 06/02/2011, 10:49 PM

Quote:

Originally Posted by ashton1881

remember head loss, factor in how much gph will be lost on the return from you sump to the display. Depending how far away that area is will make a difference in how much gph you are actually getting on your return. You can use the head loss calculator on the home page of this forum

http://www.reefcentral.com/index.php...oss-calculator

those calculators are the reason i joined this site. most other sites "communities" dont have info like that. i gained 200gph flow reconfiguring the pipe-work on my mags! love it!

Kerreefer · 06/02/2011, 10:52 PM

oh... forgot to say. 3-4 times your total water volume in gph flow works good. at least for me. more bio load = more flow. but then you need as much skimmer flow as your return pump... well not set in stone but good rule of thumb

ColaAddict · 06/02/2011, 11:03 PM

And I think it's better to use plastic tubing than PVC to cut down on the turns. I believe you lose some flow the more 90 degree angle PVC you have.

06/02/2011, 03:05 PM	#1
Gangous Registered Member Join Date: Sep 2009 Posts: 395	What should turn over rate? I have a 75 gal with built in center over flow and 15 gal sump I feel my turn over is to slow I use a 700 gph return pump but the nozzle that returns the water to display really slows the flow should I remove it

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06/02/2011, 03:09 PM	#2
cloak Moved On Join Date: Jul 2000 Location: Stockton, CA Posts: 14,854	Slow works. Fast works too. As long as it's working... Check this out. http://www.advancedaquarist.com/2003/4/beginner

06/02/2011, 10:46 PM	#3
ashton1881 Registered Member Join Date: Oct 2010 Posts: 58	remember head loss, factor in how much gph will be lost on the return from you sump to the display. Depending how far away that area is will make a difference in how much gph you are actually getting on your return. You can use the head loss calculator on the home page of this forum http://www.reefcentral.com/index.php...oss-calculator

06/02/2011, 10:52 PM	#5
Kerreefer Registered Member. Join Date: May 2011 Posts: 98	oh... forgot to say. 3-4 times your total water volume in gph flow works good. at least for me. more bio load = more flow. but then you need as much skimmer flow as your return pump... well not set in stone but good rule of thumb

06/02/2011, 11:03 PM	#6
ColaAddict Moved On Join Date: Apr 2011 Location: Northbrook Posts: 370	And I think it's better to use plastic tubing than PVC to cut down on the turns. I believe you lose some flow the more 90 degree angle PVC you have.