Go Back   The Reef Tank > Equipment / Methodology related Forums > Reefing Equipment > Skimmers & other filtration
Register

Old 01-07-2011, 01:18 PM   #1
Rmbxr9
Plankton
 
Join Date: Jan 2011
Posts: 13

Do HOB Skimmers Overflow Often?


I'm in the process of setting up/buying equipment for a 60 Gallon SW tank.
I've never bought a Skimmer before, as I'm only into Freshwater currently.

I'm seeing a few posts here and there about overflowing and flooding with Skimmers.
Is this a regular occurrence, or a .001% of people thing?

I'm looking at the HOB Reef Octopus models, the BH100 or BH1000 I guess.

I'm reading that if you "Aren't careful" and "It can be tricky" stuff like that, so now I'm getting worried that It might overflow or flood.

Do they at all?

Thanks
Rmbxr9 is offline   Reply With Quote
Old 01-07-2011, 02:24 PM   #2
Coreyb
Big Fishy
 
Coreyb's Avatar
 
Join Date: Aug 2010
Location: Virginia
Posts: 506
Reviews: 15
Mine has come close many times. I think its just a matter of how wet you skim. Just make sure you check it often and buy a GFCI unit thing

Corey
Coreyb is offline   Reply With Quote
Old 01-07-2011, 02:31 PM   #3
Rmbxr9
Plankton
 
Join Date: Jan 2011
Posts: 13
Also, but overflow, are we talking what's in the cup?
Or let's say if you're gone for 12 hours, coming home and having half the tank drained onto your floor?

GFCI is just for a possible power outage right?
Rmbxr9 is offline   Reply With Quote
Old 01-07-2011, 03:34 PM   #4
Coreyb
Big Fishy
 
Coreyb's Avatar
 
Join Date: Aug 2010
Location: Virginia
Posts: 506
Reviews: 15
Quote:
Originally Posted by Rmbxr9 View Post
Also, but overflow, are we talking what's in the cup?
Or let's say if you're gone for 12 hours, coming home and having half the tank drained onto your floor?

GFCI is just for a possible power outage right?
If you skim "wet" you will probably have to check on it often, where as if you skim dry, you can probably leave it for a week. I also mean the cup overflowing. I doubt half of your tank will be drained out thouh. It does take awhile. Also if it overflows, all the nasty stuff can dump back into your tank.

As for the GFCI, it will make sure you don't get shocked i.e. water. It can save your life. But I am no expert and I'm sure someone can explain it way better than me.

Corey
__________________
“Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?” -George Carlin
Coreyb is offline   Reply With Quote
Old 01-07-2011, 03:55 PM   #5
Rmbxr9
Plankton
 
Join Date: Jan 2011
Posts: 13
Quote:
Originally Posted by Coreyb View Post
If you skim "wet" you will probably have to check on it often, where as if you skim dry, you can probably leave it for a week. I also mean the cup overflowing. I doubt half of your tank will be drained out thouh. It does take awhile. Also if it overflows, all the nasty stuff can dump back into your tank.

As for the GFCI, it will make sure you don't get shocked i.e. water. It can save your life. But I am no expert and I'm sure someone can explain it way better than me.

Corey
Thanks for replying.
Is skimming wet and dry an option on all P.S?

For instance the Octopus BH-100, which I'm looking at, just says:

  • Updated design with OTP1000 pump
  • Dimensions: 7.75" x 3.25" x 17"
  • Rated up to 90 gallons. (varies due to bio load of system)
Would that be able to run "Dry"
Rmbxr9 is offline   Reply With Quote
Old 01-07-2011, 10:00 PM   #6
FutureDoc
Aquatic Philosopher
 
FutureDoc's Avatar
 
Join Date: Apr 2009
Location: Asheville NC
Posts: 14,604
Images: 903
Various additives and other chemicals (as well as organics) can excite skimmers to make the surface tension of bubbles unwilling to break (and the skimmer becomes a foam cannon, pushing water and bubbles out of the skimmer) If the skimmer cup is full, many skimmers are designed to have the affluent drain back into the skimmer body but this can just excite the skimmer more. In HOB skimmers, because the skimmer is outside of the tank dangling above the carpet or hardwood floors, if it is over excited and overflows there is nothing to catch it. It can also drain the tank too whatever level the pump is pulling from potentially exposing any corals in the upper part of the aquarium. In sump skimmers do not have this issue but external skimmers do as well (especially those with overflow drains). A skimmer can overflow as much as it is positioned to do... so for as long as the skimmer can pull enough water, then it could force that water out of the tank.

As for wet/dry... that is more of a description of the skimmate rather than an actual operating condition. wet skimmate being more watery (beginning at green-tea color) to thicker skimmate looking like some poo-colored yogurt (basically drying fish poo). Most HOB skimmers have to run wet or they are just not effective. Also, the "ratings" are basically useless since they normally grossly over-rate the skimmer. I think the only way for the 1000 series of the octopus HOB skimmers to handle a 90g is if it is for an Invert only stocking tank. Realistically it is more of a 55g max skimmer.

The biggest thing that salt and freshwater methods differ (besides adding more salt to a tank) is the use of a sump. Sumps make everything easier and cheaper. While I know that sumps are beneficial for freshwater set ups the cost/benefit of the salt tank give a much greater return. Insump equipment is normally better and cheaper than HOB products, and the extra water volume helps with stability. Look at all the really nice and mature tanks of folks who have been in salt fora while and I bet that any tank of reasonable size with have a sump... even some of the nanos as well.
__________________
Clemson Ph.D. & Mary Washington Alumnus

Need help with skimmers? Check out: The New FutureDoc Skimmer Thread!

Nano Jam! -I-I-I- My Re-Build -I-I-I- 40B Owner's Club -I-I-I- The Daily Water Change Experiment -I-I-I- My LED Build -I-I-I- Simple Guide to Beating Algae

Good Reads:
G's RME - Invic's Algae - Sudden Mass Death - LED Library
The one and only "super villain" sized signature.
Ya know you have a bunch of starving and dying hippy bacteria on your lawn! ~Invic
FutureDoc is offline   Reply With Quote
Old 01-07-2011, 10:25 PM   #7
Rmbxr9
Plankton
 
Join Date: Jan 2011
Posts: 13
^^^
Thanks man...
I was kind of missing the whole "To the level it can pull water", and envisioning the whole tank being pulled.
Which is dumb...But I wasn't thinking.

So if the intake area is only a few inches into the tank, the most it could pull out is that amount. Which would still be a mess, but not potentially 60G like I was thinking.

Just a guess, but what would you think the chances of something like a HOB P.S overflowing is?
I mean, I usually check/test my current tank once a day as is, so it's not like I'd leave it unchecked for days.

Is it a remote chance?
Rmbxr9 is offline   Reply With Quote
Old 01-08-2011, 11:17 AM   #8
FutureDoc
Aquatic Philosopher
 
FutureDoc's Avatar
 
Join Date: Apr 2009
Location: Asheville NC
Posts: 14,604
Images: 903
My personal outlook is this... three things in life are certain: Death, taxes, and tank overflows. It will happen... hopefully not once a week or even a year, but eventually. If could be 6 months or it could be 25 years. Even tanks with sumps and other failsafes will eventually fail either because of user error or that one pesky snail that got stuck in the critical area that causes a meltdown. I say is to not let it overly affect your decision (now if it was an overflow box, it would be a different story). Just plan for a spill and go from there. After the turkey baster, the best marine tool is the mop.

For a funny story... I had my RODI unit with a auto-shutoff valve, a float valve, and a warning siren set up on my mixing/reservoir bucket (About 35g). Well I left it on and all three failed. The next morning I probably pumped about 100 gallons of pure water through the floor into the basement below. After the clean up (which too a while) I had to refill everything again... this time the waterline ruptured and by the time I realize it, there was another 50g of water leaking everywhere. So 150g in about 3 days.
__________________
Clemson Ph.D. & Mary Washington Alumnus

Need help with skimmers? Check out: The New FutureDoc Skimmer Thread!

Nano Jam! -I-I-I- My Re-Build -I-I-I- 40B Owner's Club -I-I-I- The Daily Water Change Experiment -I-I-I- My LED Build -I-I-I- Simple Guide to Beating Algae

Good Reads:
G's RME - Invic's Algae - Sudden Mass Death - LED Library
The one and only "super villain" sized signature.
Ya know you have a bunch of starving and dying hippy bacteria on your lawn! ~Invic
FutureDoc is offline   Reply With Quote
Old 01-08-2011, 11:26 AM   #9
jenglish
Son of Jor El
 
jenglish's Avatar
 
Join Date: Jul 2008
Location: Evansville, IN
Posts: 8,286
Reviews: 52
My HOB Octo ran for 2 years w/ one overflow. I stuck the turkey baster I was using to clean the tank in the center chamber.... the bulb was full of air so it was floating and it blocked the return tube. Other than that it worked flawlessly. That is not to say that it would have worked that way forever. Honestly the drain on my overflow to my sump has no backup and has the potential to be blocked and flood. But it is a 2 inch hole so it has a degree of safety (no likely to get plugged).
__________________
Jeremy http://www.thereeftank.com/forums/f7...ef-119089.html

"Hey, I calls 'em like I sees 'em! I'm a whale biologist."

My opinion and a dollar will get you a coke.
jenglish is offline   Reply With Quote
Old 04-23-2013, 12:54 AM   #10
kodabs
Little Fishy
 
Join Date: Mar 2013
Posts: 473

Bad luck for me... My out of sump hydor 405 "performer skimmer" overflowed tonight when I got home. About 2 gallons on the floor. It was working perfect before I left for work. 2 days later I get puddles on the floor. It was working perfectly fine for an entire day right after I did my water change. I just don't get it anyone help? Futuredoc? Thanks a lot.

-kodabs
kodabs is offline   Reply With Quote
Old 04-23-2013, 11:01 AM   #11
FutureDoc
Aquatic Philosopher
 
FutureDoc's Avatar
 
Join Date: Apr 2009
Location: Asheville NC
Posts: 14,604
Images: 903
Quote:
Originally Posted by kodabs View Post
Bad luck for me... My out of sump hydor 405 "performer skimmer" overflowed tonight when I got home. About 2 gallons on the floor. It was working perfect before I left for work. 2 days later I get puddles on the floor. It was working perfectly fine for an entire day right after I did my water change. I just don't get it anyone help? Futuredoc? Thanks a lot.

-kodabs
Add anything (chemicals)? Change the water height in the sump?
__________________
Clemson Ph.D. & Mary Washington Alumnus

Need help with skimmers? Check out: The New FutureDoc Skimmer Thread!

Nano Jam! -I-I-I- My Re-Build -I-I-I- 40B Owner's Club -I-I-I- The Daily Water Change Experiment -I-I-I- My LED Build -I-I-I- Simple Guide to Beating Algae

Good Reads:
G's RME - Invic's Algae - Sudden Mass Death - LED Library
The one and only "super villain" sized signature.
Ya know you have a bunch of starving and dying hippy bacteria on your lawn! ~Invic
FutureDoc is offline   Reply With Quote
Old 04-25-2013, 11:55 AM   #12
FlyPenFly
Little Fishy
 
Join Date: Apr 2013
Posts: 101
To prevent this, I would have an external waste collector with a float valve to shut off the skimmer when it's near full.
FlyPenFly is offline   Reply With Quote
Reply

Tags
hob , octopus , protein , skimmer


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

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Drilling tank for Overflow w/bulkhead or U-tube overflow box plan Z Water movement (pumps & wavemakers) 4 07-24-2010 09:31 AM
overflow for sump and cls in same overflow box jberd General Reef Discussion 10 09-14-2009 09:58 PM
need diff. explain tube overflow box vs. cpr overflow box nobody General Reef Discussion 33 12-24-2007 02:16 PM
easy and quiet overflow/surface skimmers gwaco DIY Forum 19 10-08-2007 05:28 PM
55 gallon drilled or overflow, sump, overflow questions rangerfan General Reef Discussion 7 11-18-2005 03:19 PM

Similar Issues
Issue Issue Starter Forum Replies Last Post
http://www.thereeftank.com/forums/f76/ghettofied-super-easy-to-install-internal-overflow-box-surface obrut General Reef Discussion 21 2012-04-20 20:14:06
http://www.thereeftank.com/forums/f6/46-bow-front-reef-plumbing-overflow-box-questions-127337.html walletbmw General Reef Discussion 16 2009-04-14 15:24:28
http://www.thereeftank.com/forums/f76/ghettofied-super-easy-to-install-internal-overflow-box-surface Fly Guy DIY Forum 35 2010-01-18 14:29:13
http://www.thereeftank.com/forums/f20/55-gallon-corner-tank-w-overflow-extras-in-pa-94277.html troyrb General classifieds 0 2007-02-08 16:41:41

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226
Sponsor Our Community

All times are GMT -5. The time now is 05:15 AM.


Powered by
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
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