Closed loop help

bigben1967 · 02/11/2006, 02:58 PM

Anyone know where I can get a diagram for a closed loop system? Just bought a used 100 gal acrylic with a center overflow that's drilled for one. I have no idea how they funciton.

Thanks!

freecard · 02/11/2006, 03:20 PM

i would appreciate the same

s10willy · 02/11/2006, 03:25 PM

Check out oceansmotions website for some pictures and info.

bigben1967 · 02/11/2006, 05:25 PM

Thanks, will check there.

bigben1967 · 02/11/2006, 05:36 PM

Thanks, will check there.

SDguy · 02/11/2006, 06:08 PM

The hole(s) in the center overflow is/are not for a closed loop. It is your drain to go to your sump. A second hole, if you have one in the overflow, is meant for the sump return plumbing to go through, but many people use it as a secondary emergency drain (I highly recommend the latter).

A closed loop is just a pump plumbed directly to the tank (ie a hole drilled anywhere in the back of the tank connects to the pump inlet, and then the water is simply pumped back into the tank, either through several outlets or a tank perimeter manifold. It is used to create flow in your tank without you having to use a large sump return pump.

Here are some threads:
http://www.reefcentral.com/forums/sh...hreadid=520145

Codeman00 · 02/11/2006, 06:24 PM

To make it very simple

Closed Loop - A loop system that is never open to air. A hole is drilled in the tank under where the water level will be...the plumbing goes out of that hole through the pump and back into the tank without ever touching air. You can run it as a syphon system instead of drilling the tank, but I don't recommend it.

02/11/2006, 02:58 PM	#1
bigben1967 Registered Member Join Date: Apr 2005 Location: Jersey Posts: 27	Closed loop help Anyone know where I can get a diagram for a closed loop system? Just bought a used 100 gal acrylic with a center overflow that's drilled for one. I have no idea how they funciton. Thanks!

02/11/2006, 06:08 PM	#6
SDguy Fish heads unite! Join Date: Mar 2003 Location: San Diego Posts: 23,384	The hole(s) in the center overflow is/are not for a closed loop. It is your drain to go to your sump. A second hole, if you have one in the overflow, is meant for the sump return plumbing to go through, but many people use it as a secondary emergency drain (I highly recommend the latter). A closed loop is just a pump plumbed directly to the tank (ie a hole drilled anywhere in the back of the tank connects to the pump inlet, and then the water is simply pumped back into the tank, either through several outlets or a tank perimeter manifold. It is used to create flow in your tank without you having to use a large sump return pump. Here are some threads: http://www.reefcentral.com/forums/sh...hreadid=520145 __________________ Peter SDMAS member Marine tanks since 1989. ><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º> ·´¯`·.¸. , . .·´¯`·.. ><((((º> Current Tank Info: 240g butterfly and angel FOWLR. 15g QT.

02/11/2006, 03:20 PM	#2
freecard Registered Member Join Date: Feb 2006 Posts: 137	i would appreciate the same

02/11/2006, 03:25 PM	#3
s10willy Registered Member Join Date: Apr 2005 Location: Jacksonville, FL Posts: 404	Check out oceansmotions website for some pictures and info.

02/11/2006, 05:25 PM	#4
bigben1967 Registered Member Join Date: Apr 2005 Location: Jersey Posts: 27	Thanks, will check there.

02/11/2006, 05:36 PM	#5
bigben1967 Registered Member Join Date: Apr 2005 Location: Jersey Posts: 27	Thanks, will check there.

02/11/2006, 06:24 PM	#7
Codeman00 Premium Member Join Date: Feb 2005 Location: Goodlettsville, TN Posts: 1,664	To make it very simple Closed Loop - A loop system that is never open to air. A hole is drilled in the tank under where the water level will be...the plumbing goes out of that hole through the pump and back into the tank without ever touching air. You can run it as a syphon system instead of drilling the tank, but I don't recommend it.