Sponsor Our Community
Go Back   The Reef Tank > Equipment / Methodology related Forums > DIY Forum
Have a question? It's Free!

DIY Forum Share those Do-It-Yourself projects and money saving tips with us here.


Registered Members don't see these ads. Register now it's free!

Reply
 
Thread Tools
Old 12-20-2006, 02:15 PM   #1
Jimbo
Klingon
 
Jimbo's Avatar
 
Join Date: Feb 2002
Location: Forest Grove, OR
Posts: 1,808
Images: 8

Modding HOB skimmer for recirc


I am going to setup a 20g and wanted a decent skimmer. I was thinking of a typhoon and removing the venturi (using the main pump just for water) and use a maxijet for recirculating (needle wheel like design). I've modded my skimmer on my main tank to do this and it works great, although I have a 700gph pump on it for recirc needle wheel like.

The thing I'm worred about is bubbles into the main tank. I've also seen alot of mods for seaclone skimmers.

I don't want to build the whole skimmer so I just need something cheap to start with that if fairly well constructed.
Registered Members don't see these ads. Register now it's free!
__________________
40g 3' BB tank * 2 Seio 820's * 250w 14kk light * 190w actinic/10kk * DIY recirc skimmer.
~If I could only remember half of what I've learned~
~Jimbo~
Jimbo is offline   Reply With Quote
Old 12-20-2006, 02:32 PM   #2
Jimbo
Klingon
 
Jimbo's Avatar
 
Join Date: Feb 2002
Location: Forest Grove, OR
Posts: 1,808
Images: 8
http://www.drsfostersmith.com/produc...pc=1&N=0&Nty=1
__________________
40g 3' BB tank * 2 Seio 820's * 250w 14kk light * 190w actinic/10kk * DIY recirc skimmer.
~If I could only remember half of what I've learned~
~Jimbo~
Jimbo is offline   Reply With Quote
Old 12-20-2006, 02:34 PM   #3
Loverotties
I've got the REEF rash!
 
Loverotties's Avatar
 
Join Date: Nov 2004
Location: New Jersey
Posts: 34,168
Remora Makes a nice nano one.
__________________
Loverotties is offline   Reply With Quote
Old 12-21-2006, 12:51 AM   #4
Geoff
Reefless Reefer
 
Geoff's Avatar
 
Join Date: Jun 2002
Location: Durham, NC
Posts: 20,561
Images: 167
not sure. those smaller skimmers are working at their maximum flow as it is. i would be afraid of adding more velocity in the chamber making it more likely for micro bubbles to make it into the display. a skimmer can only handle so much velocity in it. adding a recirc uses up this valuable velocity. i feel this velocity would be put to better use with more throughput from the feed pump.

G~
__________________
Think Tanker
Friends Don't Let Friends Use Refugiums!
Reef Knowledge Impaired
"J" crowd member.
My Build Thread
Geoff is offline   Reply With Quote
Old 12-21-2006, 04:04 PM   #5
Jimbo
Klingon
 
Jimbo's Avatar
 
Join Date: Feb 2002
Location: Forest Grove, OR
Posts: 1,808
Images: 8
Quote:
not sure. those smaller skimmers are working at their maximum flow as it is. i would be afraid of adding more velocity in the chamber making it more likely for micro bubbles to make it into the display. a skimmer can only handle so much velocity in it. adding a recirc uses up this valuable velocity. i feel this velocity would be put to better use with more throughput from the feed pump.
One thing about using a maxijet is that you can adjust it to just dump bubbles without much turbulance. I was thinking of a 600. One problem with needle wheel only skimmers is if the air inlet gets clogged they can overflow. That's why I tend to shy away from recirc only skimmers like the corallife models. We should think of this, not as a recirc skimmer just a recirc bubble maker, More bubbles than water movement. So you can keep a constant throughput through the skimmer and just generate a bunch of bubbles. The main pump may push to much water through without the venturie. As you stated the extra bubbles might be a problem either way.

What about a intank bubble diffuser? Anyone diy'd one?

Here's a link to the breakdown of the skimmer. Any other skimmers worth trying this on that are a little bigger but cheap and made of good plastic.
http://www.danddmarine.com/TyphoonInstr.pdf

I was just looking and this skimmer has an inner tube would have to drill through the outer and inner tube to dump bubbles in.
__________________
40g 3' BB tank * 2 Seio 820's * 250w 14kk light * 190w actinic/10kk * DIY recirc skimmer.
~If I could only remember half of what I've learned~
~Jimbo~

Last edited by Jimbo; 12-21-2006 at 04:13 PM.
Jimbo is offline   Reply With Quote
Old 12-21-2006, 04:23 PM   #6
Koddie Doo
Let's Hug It Out .......!
 
Koddie Doo's Avatar
 
Join Date: Aug 2006
Location: Just East of East St. Louis
Posts: 667
I use a HOB Bak Pak w/ MJ 1200 mod and love it
__________________
http://thereeftank.com/forums/showthread.php?t=87558
30 Gallon Hex Build Thread
http://www.thereeftank.com/forums/sh...d.php?t=111479
Nano Buildoff 2008 "Self Declared Winner"
Koddie Doo is offline   Reply With Quote
Old 12-21-2006, 06:49 PM   #7
Jimbo
Klingon
 
Jimbo's Avatar
 
Join Date: Feb 2002
Location: Forest Grove, OR
Posts: 1,808
Images: 8
Here's what I'm thinking of
Attached Thumbnails
Click image for larger version

Name:	hobskimmer.jpg
Views:	49
Size:	101.8 KB
ID:	48342  
__________________
40g 3' BB tank * 2 Seio 820's * 250w 14kk light * 190w actinic/10kk * DIY recirc skimmer.
~If I could only remember half of what I've learned~
~Jimbo~
Jimbo is offline   Reply With Quote
Old 12-22-2006, 02:29 PM   #8
Geoff
Reefless Reefer
 
Geoff's Avatar
 
Join Date: Jun 2002
Location: Durham, NC
Posts: 20,561
Images: 167
the only problem is see is that our air inlet is below the water line for the skimmer. if the power were ever to out this is where all of the water will want to escape from.

those angled skimmate collection cups seem to not work as well as the full round ones.

other than that it should work.

G~
__________________
Think Tanker
Friends Don't Let Friends Use Refugiums!
Reef Knowledge Impaired
"J" crowd member.
My Build Thread
Geoff is offline   Reply With Quote
Old 01-05-2007, 06:38 PM   #9
tabwyo
Human grounding probe
 
tabwyo's Avatar
 
Join Date: Jun 2004
Location: Wyoming
Posts: 1,896
How do you water proof a MJ for external use? If you enlighten me I may have to mod my little skimmer.
__________________
70T/RR: Wannabe bare bottom hair algae factory


Bare Bottom and hate it!!!!
tabwyo is offline   Reply With Quote
Old 01-06-2007, 11:43 PM   #10
Jimbo
Klingon
 
Jimbo's Avatar
 
Join Date: Feb 2002
Location: Forest Grove, OR
Posts: 1,808
Images: 8
Quote:
How do you water proof a MJ for external use? If you enlighten me I may have to mod my little skimmer
MJ have a rubber o-ring. They should not leak if you have the bottom on snugly. You don't want to put a lot of stress on the intake and exhaust.
__________________
40g 3' BB tank * 2 Seio 820's * 250w 14kk light * 190w actinic/10kk * DIY recirc skimmer.
~If I could only remember half of what I've learned~
~Jimbo~
Jimbo is offline   Reply With Quote
Old 01-07-2007, 09:28 AM   #11
tabwyo
Human grounding probe
 
tabwyo's Avatar
 
Join Date: Jun 2004
Location: Wyoming
Posts: 1,896
well then I need to look at getting a couple MaxiJets then. I got an el' cheapo skimmer off aquatraders.com. The HOM/sump model. I think it would be perfect for a small smod like this.
__________________
70T/RR: Wannabe bare bottom hair algae factory


Bare Bottom and hate it!!!!
tabwyo is offline   Reply With Quote
Comparison Shopping
Mag-Float-510A Extra Large Acrylic Aquarium Cleaner

As low as $96

at 8 sellers

Seachem Pinnacle 200GDP RODI - 3028

As low as $450

at 4 sellers

Members with more than 50 posts don't see this bar

San Francisco Bay Brand Freeze Dried Bloodworms 1/2 oz.

As low as $3

at 9 sellers

True Percula Clownfish

As low as $15

at 9 sellers

Members with more than 50 posts don't see this bar

Coralife Turbo-Sea 790-P Pump

As low as $169

at 15 sellers

Marc Weiss Organics Coral Boost 6oz

As low as $11

at 13 sellers

Members with more than 50 posts don't see this bar

Pondmaster Adjustable 3-Way Diverter DV92

As low as $10

at 13 sellers

Python 8 x 6 inch Net With 24 inch Handle

As low as $6

at 9 sellers

Members with more than 50 posts don't see this bar

Rio Plus 3100 Pump

As low as $60

at 18 sellers

CaribSea Seaflor Super Reef Sand 15 lb

As low as $9

at 5 sellers

Members with more than 50 posts don't see this bar

Aquarium Pharmaceuticals Doc Wellfishs Algae Scraper Glass Aquariums 18 inch

As low as $4

at 15 sellers

Microbe-Lift Gel Filter Cartridge Innoculant 16oz

As low as $9

at 9 sellers

Members with more than 50 posts don't see this bar

Scarlet Hermit Crab

As low as $2

at 7 sellers

Aquarium Pharmaceuticals Safe & Easy Aquarium Wipes

As low as $5

at 13 sellers

Members with more than 50 posts don't see this bar

Reply

Tags
bak pak , micro bubbles , needle wheel , seaclone skimmer
 
Quick Reply
Reply:
Image Verification
Please enter the six letters or digits that appear in the image opposite.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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

Sitemap:1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196
Sponsor Our Community

All times are GMT -5. The time now is 11:15 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Our lawyer tells us that, by pressing the "New Thread" or "New Reply" button, you acknowledge that the opinions and information expressed in your article are yours alone and not those of thereeftank.com, dba The Reef Tank. Further, you agree to indemnify The Reef Tank, its moderators, administrators and agents from any and all liability which may arise as a result of your article. (C)opyright 2006 TheReefTank.com
 
close
Sign up for free and join one of the largest communities of saltwater aquarists!
Our members will be glad to help you with anything you need!

Join over 30,000 TRT members!

Email

Email Confirm Email
Username
Password Confirm Password

I agree to the website rules