Penductors and 4-way OM

MSHUR · 04/26/2007, 10:55 PM

I wonder if anyone try penductors with OM ?
Feedbacks apriciated!!!!

hahnmeister · 04/26/2007, 11:38 PM

too much pressure for the drum... it will work, but it will make for excessive wear and tear on the motor and drum.

MSHUR · 04/27/2007, 08:09 AM

point taken...thankx

drstupid · 04/27/2007, 12:49 PM

there's an RC member in philly, Jay4Robin check out the PARC board here. he's supposedly got penductors on an OM.

silverwolf72 · 04/27/2007, 01:21 PM

Goto the OM forum and ask Paul I'm sure he can give you an answer.
www.oceansmotions.com

zeusfc · 04/27/2007, 03:41 PM

Quote:

Originally posted by hahnmeister
too much pressure for the drum... it will work, but it will make for excessive wear and tear on the motor and drum.

Hahn, does that go for SCWD drums too? any advice is gratefully recieved

mwhite · 04/27/2007, 03:50 PM

I have 4 penductors in two circuits connected to 2 SCWDs, all powered by an Ocean Runner 1600. Been running for 8 months with no problems. The penductors really do multiple the flow. The random water motion in the tank is the closest I've ever seen to real wave motion.

hahnmeister · 04/27/2007, 10:36 PM

Oh yeah... the pressure that the penductors need might even cause the SCWD to explode... normal operation is out of the question.

If you want a flow controller for a system using penductors/eductors, you should be looking at something like this...
http://cgi.ebay.com/ws/eBayISAPI.dll...4918&rd=1&rd=1

A 3-way ball valve with electronic solenoid. They do make a 'pop' and click every time they rotate though, but they are perhaps the only valve that can take the pressure needed for an eductor system.

Spears and Hayward are two mfg's to look at.

Me personally, I dont think eductors are worth it. The amount of flow you lose from the back pressure is pretty serious, and you need a higher pressure (higher wattage) pump, and then, even though you may get back 4-5x the flow from the eductor, thats only 4-5x the flow actually going through the eductor, which on a 2000gph pump, might only be 800gph or less, and a couple hundred watts on the pump.

Its just easier, IMO, to run lower-pressure, flow-rated, low-wattage pumps with open outlets and larger piping. Thats what the OM was designed for really.

04/26/2007, 10:55 PM	#1
MSHUR ugust 2011 Join Date: Sep 2002 Location: brooklyn,ny Posts: 2,595	Penductors and 4-way OM I wonder if anyone try penductors with OM ? Feedbacks apriciated!!!!

04/27/2007, 08:09 AM	#3
MSHUR ugust 2011 Join Date: Sep 2002 Location: brooklyn,ny Posts: 2,595	point taken...thankx __________________ Manhattan Reefs TOTM -August 2011 Current Tank Info: Reef Savvy crystal glass, Profilux network system,PS -Diuna T5-10 bulbs, BK SM-300

04/27/2007, 12:49 PM	#4
drstupid Aquarist emeritus Join Date: Mar 2006 Location: Narberth, PA Posts: 760	there's an RC member in philly, Jay4Robin check out the PARC board here. he's supposedly got penductors on an OM. __________________ i'm not a real doctor, i just play one on tv. Current Tank Info: http://www.reefcentral.com/forums/showthread.php?t=2429266

04/26/2007, 11:38 PM	#2
hahnmeister Moved On Join Date: Sep 2005 Location: Brew City, WI Posts: 10,156	too much pressure for the drum... it will work, but it will make for excessive wear and tear on the motor and drum.

04/27/2007, 01:21 PM	#5
silverwolf72 Registered Member Join Date: Jul 2005 Location: Lake Forrest CA Posts: 1,732	Goto the OM forum and ask Paul I'm sure he can give you an answer. www.oceansmotions.com

04/27/2007, 03:50 PM	#7
mwhite Registered Member Join Date: Dec 2004 Location: MD suburbs of Wash DC Posts: 107	I have 4 penductors in two circuits connected to 2 SCWDs, all powered by an Ocean Runner 1600. Been running for 8 months with no problems. The penductors really do multiple the flow. The random water motion in the tank is the closest I've ever seen to real wave motion.

04/27/2007, 10:36 PM	#8
hahnmeister Moved On Join Date: Sep 2005 Location: Brew City, WI Posts: 10,156	Oh yeah... the pressure that the penductors need might even cause the SCWD to explode... normal operation is out of the question. If you want a flow controller for a system using penductors/eductors, you should be looking at something like this... http://cgi.ebay.com/ws/eBayISAPI.dll...4918&rd=1&rd=1 A 3-way ball valve with electronic solenoid. They do make a 'pop' and click every time they rotate though, but they are perhaps the only valve that can take the pressure needed for an eductor system. Spears and Hayward are two mfg's to look at. Me personally, I dont think eductors are worth it. The amount of flow you lose from the back pressure is pretty serious, and you need a higher pressure (higher wattage) pump, and then, even though you may get back 4-5x the flow from the eductor, thats only 4-5x the flow actually going through the eductor, which on a 2000gph pump, might only be 800gph or less, and a couple hundred watts on the pump. Its just easier, IMO, to run lower-pressure, flow-rated, low-wattage pumps with open outlets and larger piping. Thats what the OM was designed for really.