anybody running penductors/eductors on a DC pump?

Gary Majchrzak · 07/01/2017, 08:13 AM

Namely... creating the associated back pressure on a Vectra

ca1ore · 07/01/2017, 09:26 AM

Yes, running a pair post my OM4 on a Vectra M1. Not sure they really gain me all that much and I likely won't use them on my next build.

Gary Majchrzak · 07/01/2017, 09:33 AM

I don't know how much your ocean motion is affecting your end result, but straight out of my Iwaki 100 the difference between running with a penductor and without one is incredible.

Any idea of your final gph at pod?

ca1ore · 07/01/2017, 09:40 AM

I doubt the OM is materially affecting flow, though the penductors I used are kind of cheap so that may be more the problem. I only run the Vectra to about 60% so never have had a need to chase extra flow. Interesting about the Iwaki, though it's in a whole different class with regard to handling back pressure.

Gary, not sure how to measure net flow out of each nozzle, though the reason I only run the pump at 60% is because it becomes a major sand shifter any higher. Not sure that helps all that much

Gary Majchrzak · 07/01/2017, 09:44 AM

That's why I wondered about Vectras. EcoT rates them able to handle 21ft head...so they MUST be able to handle a penductor somewhat....

ca1ore · 07/01/2017, 09:52 AM

I did test my Vectra as the main pump in my system in place of my PW200 and it was pathetic. It's about 16 on the RC head pressure calculator and I got maybe 100 gph out of the Vectra. Works will as a CL pump though.

Gary Majchrzak · 07/01/2017, 10:08 AM

Ok thanks.
I'm considering a new main pump on a 265 I'm setting up.
I'm using Vortechs instead of OM for internal gyre. Different methods of attempting to acheive similar end results

07/01/2017, 08:13 AM	#1
Gary Majchrzak Team RC Member Join Date: Nov 2001 Location: Rochester, NY Posts: 41,560	anybody running penductors/eductors on a DC pump? Namely... creating the associated back pressure on a Vectra __________________ over 24 years experience with multiple types of marine aquarium systems see Upstate Reef Society Forum on RC and FB GOOGLE JUNIOR'S REEF Current Tank Info: 84x24x30 265g reef past TOTM honors

07/01/2017, 09:26 AM	#2
ca1ore Grizzled & Cynical Join Date: Apr 2006 Location: Stamford, CT Posts: 17,319	Yes, running a pair post my OM4 on a Vectra M1. Not sure they really gain me all that much and I likely won't use them on my next build. __________________ Simon Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones! Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs

07/01/2017, 09:33 AM	#3
Gary Majchrzak Team RC Member Join Date: Nov 2001 Location: Rochester, NY Posts: 41,560	Hey, Simon! I don't know how much your ocean motion is affecting your end result, but straight out of my Iwaki 100 the difference between running with a penductor and without one is incredible. Any idea of your final gph at pod? __________________ over 24 years experience with multiple types of marine aquarium systems see Upstate Reef Society Forum on RC and FB GOOGLE JUNIOR'S REEF Current Tank Info: 84x24x30 265g reef past TOTM honors

07/01/2017, 09:40 AM	#4
ca1ore Grizzled & Cynical Join Date: Apr 2006 Location: Stamford, CT Posts: 17,319	I doubt the OM is materially affecting flow, though the penductors I used are kind of cheap so that may be more the problem. I only run the Vectra to about 60% so never have had a need to chase extra flow. Interesting about the Iwaki, though it's in a whole different class with regard to handling back pressure. Gary, not sure how to measure net flow out of each nozzle, though the reason I only run the pump at 60% is because it becomes a major sand shifter any higher. Not sure that helps all that much __________________ Simon Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones! Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs

07/01/2017, 09:44 AM	#5
Gary Majchrzak Team RC Member Join Date: Nov 2001 Location: Rochester, NY Posts: 41,560	That's why I wondered about Vectras. EcoT rates them able to handle 21ft head...so they MUST be able to handle a penductor somewhat.... __________________ over 24 years experience with multiple types of marine aquarium systems see Upstate Reef Society Forum on RC and FB GOOGLE JUNIOR'S REEF Current Tank Info: 84x24x30 265g reef past TOTM honors

07/01/2017, 09:52 AM	#6
ca1ore Grizzled & Cynical Join Date: Apr 2006 Location: Stamford, CT Posts: 17,319	I did test my Vectra as the main pump in my system in place of my PW200 and it was pathetic. It's about 16 on the RC head pressure calculator and I got maybe 100 gph out of the Vectra. Works will as a CL pump though. __________________ Simon Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones! Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs

07/01/2017, 10:08 AM	#7
Gary Majchrzak Team RC Member Join Date: Nov 2001 Location: Rochester, NY Posts: 41,560	Ok thanks. I'm considering a new main pump on a 265 I'm setting up. I'm using Vortechs instead of OM for internal gyre. Different methods of attempting to acheive similar end results __________________ over 24 years experience with multiple types of marine aquarium systems see Upstate Reef Society Forum on RC and FB GOOGLE JUNIOR'S REEF Current Tank Info: 84x24x30 265g reef past TOTM honors