This as to be the dumpest question

CedarReefer · 11/07/2006, 08:53 AM

What is the real definition of a "closed loop system"?

Sean

chrisstie · 11/07/2006, 08:57 AM

From my understanding there is a place in your tank (usually drilled but there have been some constructed that don't require this) where water can come into a tube, meet up with a pump, and then be pushed back into your system in another area to create some internal flow

Lydo · 11/07/2006, 09:09 AM

Man I was going to write something here but I realised after 2 paragraphes that I was repeating myself a whole lot. so to make it short....

What he said up there is correct. The watter is always in the system. It's not seperated by a sump or filter. Simply in then out.

Lydo · 11/07/2006, 09:11 AM

By the way, there is no such thing as a dumb question. I can garantee when we started out, we had the same questions as you did.

melissa411 · 11/07/2006, 09:22 AM

lmao I asked the same question a month ago .......
no dumb question

here this helped me

www.melevsreef.com/closedloop.html

daveverdo · 11/07/2006, 09:23 AM

Actually a closed loop can have various equipment in line as long as the flow is not "open". That is to say the water cannot come out of the piping. There can be things like an inline heater, inline UV and such but they would restrict flow somewhat. So if the purpose of the closed loop is for flow things that restrict flow would be inappropriate.

Dave

papagimp · 11/07/2006, 09:40 AM

fwiw, closed loop also tends to utilize external pumps, which in turn, don't heat the water as much as a pump sitting inside your sump.

Gobydood · 11/07/2006, 10:22 AM

hd_nagel,

Nice hatchetman. I'm Listening to Jaime Madrox right now.

SuperNerd · 11/07/2006, 10:33 AM

Don't worry, there's no such thing as a dumb question..."dump" ones are another story though.

CedarReefer · 11/07/2006, 11:10 AM

Thanks for the info. I've always heard the term but thought it was just a couple of small pumps inside the tank, meaning the water never leaves the tank.

Sean

Shagsbeard · 11/07/2006, 11:37 AM

From years of teaching experience in the public colleges of the US... there are dumb questions. This isn't one of them, but there are dumb questions.

like...

"Pi is the same number in calculus as it was in geometry... right?"
"Is this important to know?"
"why don't you write ln(n) as ln^2?" (said aloud in a calculus class)

11/07/2006, 08:53 AM	#1
CedarReefer Premium Member Join Date: Mar 2003 Location: West, MI Posts: 340	This as to be the dumpest question What is the real definition of a "closed loop system"? Sean

11/07/2006, 08:57 AM	#2
chrisstie Premium Member Join Date: Jan 2005 Location: Seattle, WA Posts: 4,727	From my understanding there is a place in your tank (usually drilled but there have been some constructed that don't require this) where water can come into a tube, meet up with a pump, and then be pushed back into your system in another area to create some internal flow __________________ You lookin' at my wrasse? Current Tank Info: I find it odd that there are children starving in this country and yet we euthanize millions of stray dogs and cats every year and then incinerate the bodies. Not only that, but we make it illegal to butcher the meat. -MarkS

11/07/2006, 09:09 AM	#3
Lydo Registered Member Join Date: May 2006 Posts: 121	Man I was going to write something here but I realised after 2 paragraphes that I was repeating myself a whole lot. so to make it short.... What he said up there is correct. The watter is always in the system. It's not seperated by a sump or filter. Simply in then out. __________________ 90g tank with internal coast to coast overflow. Quiet One 4000 HH return pump reeflow dart for Closed loop 3 in sandbed Berlin turbo XL Skimmer 4 48" daylight T5s 2 48" T5 actinics

11/07/2006, 09:11 AM	#4
Lydo Registered Member Join Date: May 2006 Posts: 121	By the way, there is no such thing as a dumb question. I can garantee when we started out, we had the same questions as you did. __________________ 90g tank with internal coast to coast overflow. Quiet One 4000 HH return pump reeflow dart for Closed loop 3 in sandbed Berlin turbo XL Skimmer 4 48" daylight T5s 2 48" T5 actinics

11/07/2006, 09:40 AM	#7
papagimp COMAS Rocks! Join Date: Apr 2006 Location: Oklahoma City, OK Posts: 8,185 Blog Entries: 2	fwiw, closed loop also tends to utilize external pumps, which in turn, don't heat the water as much as a pump sitting inside your sump. __________________ 58g Softie & 75g Stoney Member, Central Oklahoma Marine Aquarium Society Current Tank Info: 58g Mixed Reef Project - Started June 2011

11/07/2006, 09:22 AM	#5
melissa411 Registered Member Join Date: Sep 2006 Location: NEW HAMPSHIRE Posts: 73	lmao I asked the same question a month ago ....... no dumb question here this helped me www.melevsreef.com/closedloop.html

11/07/2006, 09:23 AM	#6
daveverdo Registered Member Join Date: Aug 2006 Location: Horseheads, NY Posts: 1,881	Actually a closed loop can have various equipment in line as long as the flow is not "open". That is to say the water cannot come out of the piping. There can be things like an inline heater, inline UV and such but they would restrict flow somewhat. So if the purpose of the closed loop is for flow things that restrict flow would be inappropriate. Dave

11/07/2006, 10:22 AM	#8
Gobydood Registered Member Join Date: Oct 2006 Location: Colorado Springs, CO Posts: 116	hd_nagel, Nice hatchetman. I'm Listening to Jaime Madrox right now.

11/07/2006, 10:33 AM	#9
SuperNerd Registered Member Join Date: May 2003 Location: SoCal/Left Side- USA Posts: 4,572	Don't worry, there's no such thing as a dumb question..."dump" ones are another story though. __________________ I said fraggit! Current Tank Info: M-728 Combat Engineer (based on M60 hull). M-3 Lee Medium (British version with squatter).

11/07/2006, 11:10 AM	#10
CedarReefer Premium Member Join Date: Mar 2003 Location: West, MI Posts: 340	Thanks for the info. I've always heard the term but thought it was just a couple of small pumps inside the tank, meaning the water never leaves the tank. Sean

11/07/2006, 11:37 AM	#11
Shagsbeard Registered Member Join Date: Jul 2006 Location: Morro Bay, CA Posts: 2,143	From years of teaching experience in the public colleges of the US... there are dumb questions. This isn't one of them, but there are dumb questions. like... "Pi is the same number in calculus as it was in geometry... right?" "Is this important to know?" "why don't you write ln(n) as ln^2?" (said aloud in a calculus class)