HOB air-bubbles

Witfull · 08-20-2005, 04:33 AM

heres an old school trick for the HOB overflow...at the top of the U-tube, drill a small hole and glue in a one-way checkvalve. then run some standard air-tubing down to the sump. start a syphon. this will pull any air bubble out and maintain a constant flow.

Gina · 08-20-2005, 08:12 AM

We used this method on our (old tank) ha ha! I does work!!

KimPossible · 08-20-2005, 11:00 AM

What is a checkvalve?

Rougiem · 08-20-2005, 11:05 AM

Hey Kim:

I think this is what Witty is talking about...Correct me if I am wrong Witty...

Cheers!

KimPossible · 08-20-2005, 11:15 AM

Thanks

I need to check out this method

Witfull · 08-20-2005, 01:46 PM

Quote:

Originally Posted by Rougiem

Hey Kim:

I think this is what Witty is talking about...Correct me if I am wrong Witty...

Cheers!

you are correct....its used to prevent air from running back up the tubing and into the U-tube.

VoodooChld · 03-22-2006, 02:35 PM

But if your power goes out would the air line tubing siphon water to your sump? Know what I mean? thanks

sKuLLy · 03-22-2006, 08:51 PM

What's a HOB??

VoodooChld · 03-22-2006, 10:34 PM

hob is: hang on back

sKuLLy · 03-23-2006, 07:57 PM

thank you

BigAl07 · 03-16-2007, 11:16 AM

So air INSIDE the U-Tube is creating the bubbles on the over-flow? I just thought it was from the increased surface tension because I don't have a skimmer "yet". Maybe I need to look a lil more closely into it.

Allen

waucedah_joe · 03-16-2007, 01:12 PM

Quote:

Originally Posted by VoodooChld

But if your power goes out would the air line tubing siphon water to your sump? Know what I mean? thanks

I was wondering the same thing. Wouldn't that eventually break the siphon in the event of a power outage? Maybe a shutoff on that line would work better. Open valve, remove air from U-tube to establish siphon, close valve. I've got to stick a piece of airline up inside of the U-tube then suck out the air to establish a siphon then I pull out the airline.

mps9506 · 03-17-2007, 12:10 PM

I have never used this method, but I don't believe that water really flows out through the tubing because it is on top of the J tube (or U tube). A valve to shut off flow might be a good saftey measure though.
I always just shoved the airline tubing up one side of the tube and sucked the air out with my mouth, and sometimes some water. It is important to have enough water flow through the tube to prevent bubbles from collecting in the pipe though. The flow should be rapid enough to push air right through the tube.

lcstorc · 03-18-2007, 04:01 PM

I have a piece of airline tube running from the top of a power head to the top of the u tube. This pushes the bubbles out before they can really form. Since I started this I have not lost suction once.

mps9506 · 03-20-2007, 12:45 AM

Quote:

Originally Posted by lcstorc

I have a piece of airline tube running from the top of a power head to the top of the u tube. This pushes the bubbles out before they can really form. Since I started this I have not lost suction once.

Just out of curiosity what happens if the powerhead stops working?

08-20-2005, 08:12 AM	#2 (permalink)
Gina Moderator Join Date: Dec 2003 Location: Indiana Posts: 8,842 View Gallery Karma Komment	Re: HOB air-bubbles We used this method on our (old tank) ha ha! I does work!! __________________ Gina and Mark's 75 Visit Our Sponsors Gina's Cube Gina

08-20-2005, 11:00 AM	#3 (permalink)
KimPossible Golden Moray Join Date: Feb 2005 Location: Gilbert, Arizona Posts: 2,549 View Gallery Karma Komment Add yours!	Re: HOB air-bubbles What is a checkvalve? __________________ Kim ~My environment is a product of myself~

08-20-2005, 11:15 AM	#5 (permalink)
KimPossible Golden Moray Join Date: Feb 2005 Location: Gilbert, Arizona Posts: 2,549 View Gallery Karma Komment Add yours!	Re: HOB air-bubbles Thanks I need to check out this method __________________ Kim ~My environment is a product of myself~

03-22-2006, 02:35 PM	#7 (permalink)
VoodooChld Fire Coral Join Date: Mar 2006 Location: next to tampa bay Posts: 82 View Gallery Karma Komment	Re: HOB air-bubbles But if your power goes out would the air line tubing siphon water to your sump? Know what I mean? thanks __________________ -peace "And so I am an anti-imperialist. I am opposed to having the eagle put its talons on any other land." -Mark Twain

03-22-2006, 08:51 PM	#8 (permalink)
sKuLLy Bryozoan Join Date: Mar 2006 Posts: 58 View Gallery Karma Komment	Re: HOB air-bubbles What's a HOB??

03-22-2006, 10:34 PM	#9 (permalink)
VoodooChld Fire Coral Join Date: Mar 2006 Location: next to tampa bay Posts: 82 View Gallery Karma Komment	Re: HOB air-bubbles hob is: hang on back __________________ -peace "And so I am an anti-imperialist. I am opposed to having the eagle put its talons on any other land." -Mark Twain

03-23-2006, 07:57 PM	#10 (permalink)
sKuLLy Bryozoan Join Date: Mar 2006 Posts: 58 View Gallery Karma Komment	Re: HOB air-bubbles thank you

03-16-2007, 11:16 AM	#11 (permalink)
BigAl07 Do I look as lost as I am Join Date: Mar 2007 Location: Waynesville, North Carolina Posts: 21,549 View Gallery Karma Komment Add yours!	Re: HOB air-bubbles So air INSIDE the U-Tube is creating the bubbles on the over-flow? I just thought it was from the increased surface tension because I don't have a skimmer "yet". Maybe I need to look a lil more closely into it. Allen __________________ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~ *Live Rock Rubble will do the SAME thing as Bio-Balls and is NOT a suitable replacement for BIO-BALLS in a Reef System! It's ALL gotta go!!* Nitrate (NO3) reduction is directly proportional to percentage of Water Change. Allen's home-made formula...currentNO3-((%WC.01)currentNO3)=finalNO3 (thanks Luukosian) This means if you change 50% of your total water volume (That's EVERYTHING) you'll get a net reduction of (NO3) somewhere around 50%. Ask me about how to increase your REEF budget without going without FOOD!!* Big Al's 10g Julie's (BigAl's Gal) 6g NanoCube Gone but not forgotten BigAl's Slow 90g Tank Chronicle Allens OFFICE 12g Nano-Reef

03-17-2007, 12:10 PM	#13 (permalink)
mps9506 Totally back Join Date: Jan 2004 Location: Wilmington, NC Posts: 8,525 View Gallery Karma Komment	Re: HOB air-bubbles I have never used this method, but I don't believe that water really flows out through the tubing because it is on top of the J tube (or U tube). A valve to shut off flow might be a good saftey measure though. I always just shoved the airline tubing up one side of the tube and sucked the air out with my mouth, and sometimes some water. It is important to have enough water flow through the tube to prevent bubbles from collecting in the pipe though. The flow should be rapid enough to push air right through the tube. __________________ Mike Reefkeeping Since '99 Help Build Reefpedia Premium Memberships Available! Support Reef Sanctuary Sponsors

03-18-2007, 04:01 PM	#14 (permalink)
lcstorc Sunshine Reefer Join Date: Mar 2006 Location: Cocoa Fl Posts: 26,433 View Gallery Karma Komment Add yours!	Re: HOB air-bubbles I have a piece of airline tube running from the top of a power head to the top of the u tube. This pushes the bubbles out before they can really form. Since I started this I have not lost suction once. __________________ Peace LYNN Lynn and Franks saltwater adventure Lynn's 20g clown tank Lynn's 90g of sunshine Lynn's frag tank experiment A reef tank is like a race car. The faster you go the harder you crash.

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