Reef Central Online Community

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community Archives > General Interest Forums > Do It Yourself

 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 01/03/2007, 01:11 PM
foshizzle foshizzle is offline
Registered Member
 
Join Date: Mar 2006
Posts: 445
11 LPM too much for a 3" skimmer riser?

I'm pulling 10-12 LPM with a meshmod OR2700. Do I need to go with a 4" riser?

Skimmer body is 6"x 18"
  #2  
Old 01/03/2007, 10:03 PM
prance1520 prance1520 is offline
Registered Member
 
Join Date: Feb 2004
Location: Columbus Ohio
Posts: 477
Send a message via AIM to prance1520
bump for a good question
  #3  
Old 01/04/2007, 01:18 AM
bebitte70 bebitte70 is offline
Registered Member
 
Join Date: Dec 2005
Location: Canada
Posts: 155
I am wondering also as I want to mod a css body.
  #4  
Old 01/04/2007, 06:07 AM
Malifluous Malifluous is offline
Registered Member
 
Join Date: Nov 2006
Location: Sumwhereovadarainbo
Posts: 291
Hey foshizzle, sorry to change the subject but I wanted to ask you if your meshmod is heating up the tank. I meshmoded an OR3700 and it is heating water up to 110 F. It was only 5 gallons of water but im still afraid to run the pump this way as it may just burn up. If its not too much trouble, i would like to see how u made your mesh impellor cos Im pulling 10-12 LPM also and thats with an OR3700. You would think I should be able to pull more than an OR2700. I was only abe to fit 2 layers of mvagi mesh. WHat is the diameter of your venturi hole? Thanks for yor time.
  #5  
Old 01/04/2007, 09:41 AM
dsquared dsquared is offline
Registered Member
 
Join Date: Sep 2004
Location: arkansas
Posts: 136
Malifuous,
I meshmoded a serda 5000 & it heated my water. I found that I didn't trim the outside edge of the mesh enough & if rubed the housing, which made the pump work harder, which made heat.
Dave
  #6  
Old 01/05/2007, 06:03 PM
foshizzle foshizzle is offline
Registered Member
 
Join Date: Mar 2006
Posts: 445
Quote:
Originally posted by dsquared
Malifuous,
I meshmoded a serda 5000 & it heated my water. I found that I didn't trim the outside edge of the mesh enough & if rubed the housing, which made the pump work harder, which made heat.
Dave
This is probably your problem. Does the OR start on its own without you blowing air into the line? My pump doesn't start on its own. I need to do a little trimming myself.

You should be pulling more than 12LPM but on the other hand it could be a venturi problem. My venturi fits 3/8 OD line. I only used 2 layers of mesh also. I only got an extra 1LPM with 3 layers.

anyone got input on my intitial question...

Last edited by foshizzle; 01/05/2007 at 06:21 PM.
  #7  
Old 01/05/2007, 06:41 PM
Malifluous Malifluous is offline
Registered Member
 
Join Date: Nov 2006
Location: Sumwhereovadarainbo
Posts: 291
The pump doesnt start on its own. I really need to smack it hard or remove it from water and let it get spinning then submerge it. There is no mesh that i can see touching the housing.

If you can find out the height of the riser for any other factory made skimmer that pulls 11-12 lpm that may answer your question.
  #8  
Old 01/05/2007, 07:34 PM
foshizzle foshizzle is offline
Registered Member
 
Join Date: Mar 2006
Posts: 445
I was refering to riser diameter. The deltec apf200 pulls about the same and I believe it has a 3" riser. Mine is about 6 1/2" tall

I meant to say 1/4 on the venturi line btw
  #9  
Old 01/05/2007, 09:14 PM
kentrob11 kentrob11 is offline
Weed Reefer
 
Join Date: Jan 2002
Location: O'Fallon, IL
Posts: 3,496
You're fine with that diameter riser- You guys who are having heat problems with your pumps need to do some mesh trimming. You shouldn't have any rubbing anywhere....
  #10  
Old 01/06/2007, 12:45 AM
purereefer purereefer is offline
Moved On
 
Join Date: Dec 2006
Posts: 15
that riser sounds fine, i run about 75lpm through my 4" riser, and that wasnt a typo, really 75lpm. gotta love air pumps

Tim
 

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -5. The time now is 07:16 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef Central Reef Central, LLC. Copyright 1999-2009