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jeffras 
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 Topic: Plumbing an external pump
Posted: June 28 2007 at 7:24pm |
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I picked up an external pump and wanted some suggestions on how to plump it. I have a 20g High sump that is not drilled so should I just create a u-tube out of pvc? Should I use flexible hose instead? Anyone doing something similar with some pics of your setup?
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Jeff Rasmussen
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Adam Blundell
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Posted: June 28 2007 at 10:31pm |
Hard plumb it over the top, remember to use a screw on cap so you can initially prime it. Feel free to come over and I can show you my closed loop.
Adam
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Mark Peterson
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Posted: June 29 2007 at 8:42am |
I agree with Adam about plumbing it over the top, but it could be hard or soft plumbed.
Also, priming is easy with a length of tubing temporarily stuck up inside the return nozzle pushing water in from a powerhead. It forces water in and air out. That way you don't risk a leak from the screw-on cap and also reduce friction/piping interference in the water flow.
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Corey Price
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Posted: June 29 2007 at 1:22pm |
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Hard plumb it like Adam said to prevent implosion of the intake piping if there is an obstruction. Just my two cents.
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Dion Richins
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Posted: June 29 2007 at 3:17pm |
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If I remember Ill post how mine is plumbed. Its a little crazy cause I have 2 ext plumbed in but you'll get the idea.
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fj40fax
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Posted: July 02 2007 at 10:13pm |
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Check valve below the pump, then you only have to do the Mark trick once and if the power goes out it stays primed.
Fax
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Fax 318-3632
90g 2x250W 14kK MH
Sump, Fuge, G3, UV, O3, ACIII
Pleasant Grove, UT Across State Street from the Purple Turtle
Adjustments and Massages for Frags!
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Dion Richins
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Posted: July 03 2007 at 12:17am |
Heres some pictures of my spaghetti mess. I cant wait to plumb in the new dart. I will have both of these for sale then.
Hope your not offended by my showing you my plumbing  |
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Dion Richins
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Posted: July 03 2007 at 12:20am |
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Ive never had to re prime it unless Ive taken it apart to clean.
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jeffras
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Posted: July 03 2007 at 12:25am |
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Thanks Dion!
BTW,
I'm so sick of people being offended that I myself am offended.
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Jeff Rasmussen
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fj40fax
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Posted: July 03 2007 at 5:33pm |
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I see why you don't have to re-prime dion. I was thinking he was
going to put the pump above the water level in the sump, which is not a
good idea unless you have a check valve.
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Fax 318-3632
90g 2x250W 14kK MH
Sump, Fuge, G3, UV, O3, ACIII
Pleasant Grove, UT Across State Street from the Purple Turtle
Adjustments and Massages for Frags!
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Dion Richins
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Posted: July 03 2007 at 6:10pm |
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jeffras
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Posted: July 03 2007 at 7:39pm |
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Ok, thanks guys. I have an submersible right now (mag something or maybe a rio) and this new external iwaki (960gph). I have two returns. Do you think I should add this pump on one return (one pump, one return) or replace the submersible with this?
Edited by jeffras - July 03 2007 at 7:39pm
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Jeff Rasmussen
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Mike Savage
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Posted: July 03 2007 at 7:59pm |
If you want to use this pump then I would either use it for a closed loop or remove the other pump and replace it with this one. I wouldn't use a separate pump on each return. I would like to hear some other opinions on this though.
Mike
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fj40fax
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Posted: July 03 2007 at 7:59pm |
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If it's a rio REPLACE! If it's a mag, it is up to you. Always nice to have redundancy.
Fax
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Fax 318-3632
90g 2x250W 14kK MH
Sump, Fuge, G3, UV, O3, ACIII
Pleasant Grove, UT Across State Street from the Purple Turtle
Adjustments and Massages for Frags!
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Dion Richins
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Posted: July 03 2007 at 9:49pm |
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You have a 150g right? The tank you see these on is a 125 with 2 returns. Both of these pumps are 1250gph at 0 head. They work fantastic. Now food for thought. I believe the new dart runs 3600gph at 0 head. It will be interesting to see how that handles it.
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Dion Richins
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Posted: July 03 2007 at 9:50pm |
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I used to run 2 mag 18 on this tank before the ext upgrade.
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jeffras
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Posted: July 06 2007 at 12:09pm |
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I replaced all the plumbing yesterday and installed the iwaki. I have not glued any of the pvc yet. Does this cause microbubbles? Every 10-15 seconds the returns spit out some bubbles.
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Jeff Rasmussen
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Mike Savage
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Posted: July 06 2007 at 12:33pm |
Yes it does. It is easier to pump air than water so if there is even the tinyest leak the pump will suck a little air and produce microbubbles.
Mike
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jeffras
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Posted: July 06 2007 at 1:53pm |
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Thanks Mike.
I don't want to glue all the pipes (I have 4 connections that I will not glue) so I can take the plumbing out if needed. How can I make these air tight and also be able to disassemble it in the future?
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Jeff Rasmussen
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Mike Savage
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Posted: July 06 2007 at 2:04pm |
You could try wrapping the male pieces in teflon tape then pressing the pieces together. The best way is to use a universal and glue the pieces but that can add a bit to the cost.
Mike
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