Really easy HOB Overflow

Nano_reeflover · 03/31/2006, 10:16 PM

Hey guys,
I was looking around on the internet today and found this really easy HOB overflow. I need an overflow for my 60gal and was wondering if this one looks like it will work.

http://www.reefs.org/diy/index.html

xtrstangx · 03/31/2006, 11:11 PM

Yes.

Don't put the tube on the top. When you need to start it, fill up the front and the back box. Get a piece of airline hose and snake it up to the top of the U-tube. Then you can just suck on the airline hose until there is no air left in the U-tube..

Nano_reeflover · 03/31/2006, 11:17 PM

Yea thats what I was planning on doing if I made it.

xtrstangx · 03/31/2006, 11:19 PM

Unless you are looking to build something for fun, it'd probably be cheaper to buy a used one, IMO. You can find cheap HOB filters for $20 or $30 in the buy/sell/trade forum usually.

chrismunn · 03/31/2006, 11:21 PM

cool, im going to build one out of corian

Nano_reeflover · 03/31/2006, 11:29 PM

I'd mainly be building this for fun. I love biulding things and I need an overflow, so... I'm making it!

sjm817 · 03/31/2006, 11:45 PM

As above, skip the vinyl tubing on the top. Also, 3/4" U Tube and drain is for a low flow setup.

Emmelemmo · 04/01/2006, 12:18 PM

For a 60 gal, I would probably go with a 1" drain to the sump. I think with a 3/4" you will not get the flow that you desire.

KH971 · 04/01/2006, 01:17 PM

Why not leave the tube on top and connect it to a maxijet venturi input, that way if it were to shut off the maxijet would reprime the tube. Or use an aqualifter pump from Marine Depot. I used to use a double tube one for my tank and had both tubes connected and a maxijet 1200 would reprime my Utubes in case it were to lose siphon during a loss of electricity.

Airman · 04/01/2006, 01:45 PM

I used an overflow to get water to my sump and I have the airline connected to the maxijet venturi like KH971 said. position the airline at a 45 degree angle away from the tank because as the u-tube starts to prime itself the remaining air bubbles will start to travel with the waterflow. I have the maxijet pump that I use for priming the overflow and the sump pump on the same power strip. This makes it easy for me to shutdown and restart. I don't suck saltwater any more.

Nano_reeflover · 04/01/2006, 05:15 PM

Thanks guys. I am definately going to use 1" all around instead of 3/4". Airman, can you post a pic of your maxi attached to the u tube?

thanks

cato · 04/01/2006, 05:52 PM

Pretty cool. Post some pics as you go. Will be fun to follow along.

Airman · 04/01/2006, 06:32 PM

I wish I could post pics. I take a lot of pictures of my set up but I don't know how to post them. I'm IT challenged.

Nano_reeflover · 04/01/2006, 06:37 PM

When you click reply, go down to where it says attach file. Look over to the right and it tells you how to post an image.

03/31/2006, 10:16 PM	#1
Nano_reeflover Reefer Join Date: Jan 2006 Location: Seattle Posts: 449	Really easy HOB Overflow Hey guys, I was looking around on the internet today and found this really easy HOB overflow. I need an overflow for my 60gal and was wondering if this one looks like it will work. http://www.reefs.org/diy/index.html

03/31/2006, 11:21 PM	#5
chrismunn Registered Member Join Date: Aug 2004 Location: Austin, Texas Posts: 4,200	cool, im going to build one out of corian __________________ Marine Aquarists Association of South Texas Austin Reef Club PBITAWA... Current Tank Info: 14g bio cube

03/31/2006, 11:45 PM	#7
sjm817 On Yer left! Join Date: Sep 2004 Location: Northern VA Posts: 18,777	As above, skip the vinyl tubing on the top. Also, 3/4" U Tube and drain is for a low flow setup. __________________ - Scott

04/01/2006, 01:45 PM	#10
Airman Registered Member Join Date: Aug 2005 Location: Boise, ID Posts: 643	I used an overflow to get water to my sump and I have the airline connected to the maxijet venturi like KH971 said. position the airline at a 45 degree angle away from the tank because as the u-tube starts to prime itself the remaining air bubbles will start to travel with the waterflow. I have the maxijet pump that I use for priming the overflow and the sump pump on the same power strip. This makes it easy for me to shutdown and restart. I don't suck saltwater any more. __________________ What is man, that thou art mindful of him?...:) Current Tank Info: 55 Gal, DSB, protein skimmer, UV light, Sump/Refugium

04/01/2006, 05:52 PM	#12
cato New England Join Date: Nov 2005 Location: CT Posts: 5,450	Pretty cool. Post some pics as you go. Will be fun to follow along. __________________ -Cato I swear it's an illness... Current Tank Info: On Hiatus

03/31/2006, 11:11 PM	#2
xtrstangx Premium Member Join Date: Mar 2005 Location: Shawnee, Kansas Posts: 4,568	Yes. Don't put the tube on the top. When you need to start it, fill up the front and the back box. Get a piece of airline hose and snake it up to the top of the U-tube. Then you can just suck on the airline hose until there is no air left in the U-tube..

03/31/2006, 11:17 PM	#3
Nano_reeflover Reefer Join Date: Jan 2006 Location: Seattle Posts: 449	Yea thats what I was planning on doing if I made it.

03/31/2006, 11:19 PM	#4
xtrstangx Premium Member Join Date: Mar 2005 Location: Shawnee, Kansas Posts: 4,568	Unless you are looking to build something for fun, it'd probably be cheaper to buy a used one, IMO. You can find cheap HOB filters for $20 or $30 in the buy/sell/trade forum usually.

03/31/2006, 11:29 PM	#6
Nano_reeflover Reefer Join Date: Jan 2006 Location: Seattle Posts: 449	I'd mainly be building this for fun. I love biulding things and I need an overflow, so... I'm making it!

04/01/2006, 12:18 PM	#8
Emmelemmo Registered Member Join Date: Mar 2006 Location: Grove City, OH Posts: 71	For a 60 gal, I would probably go with a 1" drain to the sump. I think with a 3/4" you will not get the flow that you desire.

04/01/2006, 01:17 PM	#9
KH971 Registered Member Join Date: Jan 2004 Location: Eatonton,GA. Posts: 824	Why not leave the tube on top and connect it to a maxijet venturi input, that way if it were to shut off the maxijet would reprime the tube. Or use an aqualifter pump from Marine Depot. I used to use a double tube one for my tank and had both tubes connected and a maxijet 1200 would reprime my Utubes in case it were to lose siphon during a loss of electricity.

04/01/2006, 05:15 PM	#11
Nano_reeflover Reefer Join Date: Jan 2006 Location: Seattle Posts: 449	Thanks guys. I am definately going to use 1" all around instead of 3/4". Airman, can you post a pic of your maxi attached to the u tube? thanks

04/01/2006, 06:32 PM	#13
Airman Registered Member Join Date: Aug 2005 Location: Boise, ID Posts: 643	I wish I could post pics. I take a lot of pictures of my set up but I don't know how to post them. I'm IT challenged. __________________ What is man, that thou art mindful of him?...:) Current Tank Info: 55 Gal, DSB, protein skimmer, UV light, Sump/Refugium

04/01/2006, 06:37 PM	#14
Nano_reeflover Reefer Join Date: Jan 2006 Location: Seattle Posts: 449	When you click reply, go down to where it says attach file. Look over to the right and it tells you how to post an image.