LFP Super Venturi! Easy to make step-by-step guide! - Page 5

JCTewks · 10/02/2008, 10:04 PM

You want the angle of the holes facing the direction that the water is flowing. Wether ir be on the intake or output

So if water is moving from left top right...you want your holes to be drilled like this

__________
. \

---------->

__________/

JCTewks · 10/02/2008, 10:05 PM

Well, that didn't work as I had hoped...but hopefully you get what I'm saying

JoelNB · 10/02/2008, 10:28 PM

HTH

Code:

_____\ \_____


- - - - - >

_____   _____
     / /

JCTewks · 10/02/2008, 10:41 PM

Thanks Joel!!! That seemed to work better than mine

2_zoa · 10/03/2008, 09:17 PM

Yes that helps. Thank you for the replys.

dew2loud1 · 10/08/2008, 02:39 PM

Just built my first one out of some scrap clear pvc I had laying around, we don't have any acrylic shops within 100+ miles. I used 1" pvc, then dremeled out the T fitting and slid it into it until the smallest diameter is within the T, then attached a 1" piece of pvc to the T for the intake. There was some cracking when I pushed the venturi into the outer tube, but its going very strong right now. 0-200 RMC gets here on friday, so we'll see actual numbers then.

miwoodar · 10/08/2008, 03:17 PM

Looking forward to seeing your numbers and pics dew2loud1. I'm getting ready to build a skimmer based off of a Laguna pump as well.

Young Frankenstein · 10/08/2008, 05:38 PM

Quote:

Originally posted by miwoodar
Looking forward to seeing your numbers and pics dew2loud1. I'm getting ready to build a skimmer based off of a Laguna pump as well.

wait till I am finished.......I think myne will work better

CoRPS · 10/08/2008, 05:42 PM

Sorry if this has been asked already. But how can I incorporate this into a DIY skimmer? I need to either buy or build a skimmer for my 55g tank and would LOVE some suggestions.

Edit: Hey Young Frankenstein, noticed you're from Miami too. Where about?
Edit2: The DIY Skimmer has to be HOB as well. No room for a sump.

miwoodar · 10/08/2008, 05:47 PM

Quote:

Originally posted by Young Frankenstein
wait till I am finished.......I think myne will work better

Yeah but I would have to install a dedicated circuit breaker to run the pump!

dew2loud1 · 10/08/2008, 07:52 PM

Well mine is based on the 4200 and ATB already has there version almost up to 200 scfh, so frank you have a lofty goal.....

miwoodar · 10/08/2008, 08:28 PM

That is waaay bigger than mine. I'm basing mine on a PJ5000.

200 scfh!

You had better start cracking - that is a LOFTY goal!

JCTewks · 10/08/2008, 10:09 PM

I've gotten my 4200 over 200 now!!! Still looking to break 300scfh

YF, try doing that!!! and doing it less than 150watts!!!

miwoodar · 10/08/2008, 10:19 PM

Woah! Is this an academic pursuit? Are you turning your 26 gallon *into* a skimmer!?

JCTewks · 10/08/2008, 10:24 PM

It's DEFINITELY not for the 26g

The MSX 200 is already overkill

It's more one of those "let's see if I can do it" deals

BeanAnimal · 10/08/2008, 10:48 PM

Still waiting for somebody to mod me up one for my 6' tall skimmer. I just don't have the damn time. I hate that ocean runner...

JCTewks · 10/08/2008, 11:16 PM

Quote:

Originally posted by BeanAnimal
Still waiting for somebody to mod me up one for my 6' tall skimmer. I just don't have the damn time. I hate that ocean runner...

Let me get this one figured out (read: up to 300scfh

) and I'll make one for you! I wouldn't think you'd need more than a 2000 motorblock force fed w/ an Alita 20. What diameter and water column height do you have?

BeanAnimal · 10/09/2008, 07:18 AM

The skimmer is 6" PVC

I have an Alita AL-15 on it right now (remember I an authorized VAR), but have to vent most of the air, as the OR-2500 chokes at anything over about 25SCFH. It has the stock NW in because I don't have the patience to maintain a meshwheel AND it has enough trouble starting as it is anyway. ORs suck.

dew2loud1 · 10/09/2008, 02:54 PM

Bean,
I use a meshed OR 6500 and you would be surprised what it can do, its running an ASM G6 right now not 6' tall but a good 4', the laguna is most likely your best bet though.

Young Frankenstein · 10/09/2008, 03:54 PM

Quote:

Originally posted by BeanAnimal
The skimmer is 6" PVC

I have an Alita AL-15 on it right now (remember I an authorized VAR), but have to vent most of the air, as the OR-2500 chokes at anything over about 25SCFH. It has the stock NW in because I don't have the patience to maintain a meshwheel AND it has enough trouble starting as it is anyway. ORs suck.

Bean is that you in the photo ?

I thought you were a guy.

JCTewks · 10/09/2008, 09:26 PM

Bean, are you wanting to force feed that skimmer or naturally aspirate it? I'm assuming force fed at that height, although, I could get you a 4200 that would do 200scfh on the skimmer and give you a 4'tall bubble column...there would only be about a foot of head for the pump to work against

2_zoa · 10/10/2008, 09:18 PM

Quote:

Originally posted by JCTewks
Bean, are you wanting to force feed that skimmer or naturally aspirate it? I'm assuming force fed at that height, although, I could get you a 4200 that would do 200scfh on the skimmer and give you a 4'tall bubble column...there would only be about a foot of head for the pump to work against

Wow how cool would that be!! Sorry to interupt but I would be interested in that one could you share that?

JCTewks · 10/10/2008, 09:21 PM

Quote:

Originally posted by 2_zoa
Wow how cool would that be!! Sorry to interupt but I would be interested in that one could you share that?

BIG volute and LOTS of mesh

BeanAnimal · 10/10/2008, 09:34 PM

I dont mind force feeding it. I have the pump already. If the venturi would pull 60 - 80 and do so in a consitent manner with this height skimmer... well then i would consider that as well. I just know the skimmer will take a LOT more air but the OR 3700 can't handle over 25 SCFH or so. I would like to get as much air as possibe without a significant increase in water flow. The skimmer is only 6" in diameter and I fear much more flow will cause a significant amount of turbulance.

BeanAnimal · 10/10/2008, 09:35 PM

I dont mind force feeding it. I have the pump already. If the venturi would pull 60 - 80 and do so in a consitent manner with this height skimmer... well then i would consider that as well. I just know the skimmer will take a LOT more air but the OR 3700 can't handle over 25 SCFH or so. I would like to get as much air as possibe without a significant increase in water flow. The skimmer is only 6" in diameter and I fear much more flow will cause a significant amount of turbulance.

10/02/2008, 10:28 PM	#103
JoelNB Registered Member Join Date: Aug 2008 Posts: 247	HTH Code: _____\ \_____ - - - - - > _____ _____ / /

10/08/2008, 03:17 PM	#107
miwoodar Likey the bikey Join Date: Dec 2004 Location: Colorado Posts: 3,371	Looking forward to seeing your numbers and pics dew2loud1. I'm getting ready to build a skimmer based off of a Laguna pump as well. __________________ Mike On hiatus. I'm either out riding my bicycle, playing with my family, or throwing ferts in my planted tank. Or working. I hope I'm not doing that though. Current Tank Info: 140 DIY Cube

10/08/2008, 08:28 PM	#112
miwoodar Likey the bikey Join Date: Dec 2004 Location: Colorado Posts: 3,371	That is waaay bigger than mine. I'm basing mine on a PJ5000. 200 scfh! You had better start cracking - that is a LOFTY goal! __________________ Mike On hiatus. I'm either out riding my bicycle, playing with my family, or throwing ferts in my planted tank. Or working. I hope I'm not doing that though. Current Tank Info: 140 DIY Cube

10/08/2008, 10:19 PM	#114
miwoodar Likey the bikey Join Date: Dec 2004 Location: Colorado Posts: 3,371	Woah! Is this an academic pursuit? Are you turning your 26 gallon into a skimmer!? __________________ Mike On hiatus. I'm either out riding my bicycle, playing with my family, or throwing ferts in my planted tank. Or working. I hope I'm not doing that though. Current Tank Info: 140 DIY Cube

10/02/2008, 10:04 PM	#101
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	You want the angle of the holes facing the direction that the water is flowing. Wether ir be on the intake or output So if water is moving from left top right...you want your holes to be drilled like this __________ . \ ----------> __________/

10/02/2008, 10:05 PM	#102
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	Well, that didn't work as I had hoped...but hopefully you get what I'm saying

10/02/2008, 10:41 PM	#104
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	Thanks Joel!!! That seemed to work better than mine

10/03/2008, 09:17 PM	#105
2_zoa Registered Member Join Date: Sep 2008 Posts: 1,840	Yes that helps. Thank you for the replys.

10/08/2008, 02:39 PM	#106
dew2loud1 backyard berghia breeder Join Date: Nov 2006 Location: Marion, Oh Posts: 703	Just built my first one out of some scrap clear pvc I had laying around, we don't have any acrylic shops within 100+ miles. I used 1" pvc, then dremeled out the T fitting and slid it into it until the smallest diameter is within the T, then attached a 1" piece of pvc to the T for the intake. There was some cracking when I pushed the venturi into the outer tube, but its going very strong right now. 0-200 RMC gets here on friday, so we'll see actual numbers then.

10/08/2008, 05:42 PM	#109
CoRPS Big Time Reefer Join Date: Apr 2004 Location: P-RINE Posts: 2,887	Sorry if this has been asked already. But how can I incorporate this into a DIY skimmer? I need to either buy or build a skimmer for my 55g tank and would LOVE some suggestions. Edit: Hey Young Frankenstein, noticed you're from Miami too. Where about? Edit2: The DIY Skimmer has to be HOB as well. No room for a sump.

10/08/2008, 07:52 PM	#111
dew2loud1 backyard berghia breeder Join Date: Nov 2006 Location: Marion, Oh Posts: 703	Well mine is based on the 4200 and ATB already has there version almost up to 200 scfh, so frank you have a lofty goal.....

10/08/2008, 10:09 PM	#113
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	I've gotten my 4200 over 200 now!!! Still looking to break 300scfh YF, try doing that!!! and doing it less than 150watts!!!

10/08/2008, 10:24 PM	#115
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	It's DEFINITELY not for the 26g The MSX 200 is already overkill It's more one of those "let's see if I can do it" deals

10/08/2008, 10:48 PM	#116
BeanAnimal Registered Member Join Date: Feb 2003 Location: Pittsburgh Posts: 20,772	Still waiting for somebody to mod me up one for my 6' tall skimmer. I just don't have the damn time. I hate that ocean runner...

10/09/2008, 07:18 AM	#118
BeanAnimal Registered Member Join Date: Feb 2003 Location: Pittsburgh Posts: 20,772	The skimmer is 6" PVC I have an Alita AL-15 on it right now (remember I an authorized VAR), but have to vent most of the air, as the OR-2500 chokes at anything over about 25SCFH. It has the stock NW in because I don't have the patience to maintain a meshwheel AND it has enough trouble starting as it is anyway. ORs suck.

10/09/2008, 02:54 PM	#119
dew2loud1 backyard berghia breeder Join Date: Nov 2006 Location: Marion, Oh Posts: 703	Bean, I use a meshed OR 6500 and you would be surprised what it can do, its running an ASM G6 right now not 6' tall but a good 4', the laguna is most likely your best bet though.

10/09/2008, 09:26 PM	#121
JCTewks Moved On Join Date: Oct 2005 Location: Wilmington, Ohio Posts: 3,040	Bean, are you wanting to force feed that skimmer or naturally aspirate it? I'm assuming force fed at that height, although, I could get you a 4200 that would do 200scfh on the skimmer and give you a 4'tall bubble column...there would only be about a foot of head for the pump to work against

10/10/2008, 09:34 PM	#124
BeanAnimal Registered Member Join Date: Feb 2003 Location: Pittsburgh Posts: 20,772	I dont mind force feeding it. I have the pump already. If the venturi would pull 60 - 80 and do so in a consitent manner with this height skimmer... well then i would consider that as well. I just know the skimmer will take a LOT more air but the OR 3700 can't handle over 25 SCFH or so. I would like to get as much air as possibe without a significant increase in water flow. The skimmer is only 6" in diameter and I fear much more flow will cause a significant amount of turbulance.

10/10/2008, 09:35 PM	#125
BeanAnimal Registered Member Join Date: Feb 2003 Location: Pittsburgh Posts: 20,772	I dont mind force feeding it. I have the pump already. If the venturi would pull 60 - 80 and do so in a consitent manner with this height skimmer... well then i would consider that as well. I just know the skimmer will take a LOT more air but the OR 3700 can't handle over 25 SCFH or so. I would like to get as much air as possibe without a significant increase in water flow. The skimmer is only 6" in diameter and I fear much more flow will cause a significant amount of turbulance.