HOB overflow

• Nov 11, 2011

• #1

WaVe RiDeR

Reefing newb

was looking into the already built HOB overflows but if i can make one for cheap i would rather do that, any decent ideas or does any one have any knowledge about them?

 

• Nov 12, 2011

• #2

Smitty

Reef pro

You can try looking on youtube for ideals. I'm sure you'll find something there.

 

• Nov 14, 2011

• #3

M

monkiboy

Reefing newb

you can always go the pvc route. check youtube for diy overflow and check it out. that's what i'm doing now.

 

• Feb 2, 2012

• #4

M

markrj

Reefing newb

I just finished building this one about 15 minutes ago.

 

• Feb 2, 2012

• #5

M

monkiboy

Reefing newb

markrj said:

I just finished building this one about 15 minutes ago.

Click to expand...

you building a snail guard or something for that guy? what happens when a large snail sits right on the screen and blocks/impedes flow and your return pump is still going at its rate and then dry?

 

• Feb 2, 2012

• #6

M

markrj

Reefing newb

Yes! It is not finished. The parts that go into the tank are not even glued together. Only the external pipes and elbows are glued at this time.

I have yet to finalize the interior. I may put it in a 2" pipe and cut slots at the top of the 2" pipe.

Like this.

 

• Feb 3, 2012

• #7

M

markrj

Reefing newb

I actually have to use a 3" pipe for the overflow.

More pics soon. I put the first coat of paint on it. and it's looking pretty good!

 

• Feb 3, 2012

• #8

kevdogg

Reefing newb

what type of paint are you using?

 

• Feb 3, 2012

• #9

M

markrj

Reefing newb

Krylon Fusion.

 

• Feb 3, 2012

• #10

M

monkiboy

Reefing newb

markrj said:

Krylon Fusion.

Click to expand...

that's what i used, too. i scored the surface with some light sanding and primered first for great adhesion. the stuff dries fast, too in proper temps and has held up with multiple coats in the tank even against scratching and bumping of rocks when aquascaping.

 

• Feb 22, 2012

• #11

M

markrj

Reefing newb

Not real happy with the flow rate of this design.

Unless I have a design flaw somewhere it is very sensitive to the rate of return from the pump. I have a 950gph turned down to what seems like a trickle.

The drain is just the vertical pipe with no elbow on it. Could that be the reason?

 

• Feb 22, 2012

• #12

M

monkiboy

Reefing newb

950gph with how much head? 1" PVC will net you about 200-300gph so if you have it turned down with no head to little head, that would make sense.

 

• Feb 24, 2012

• #13

Cheeser

I Love Reefer

i have 1&1/4 inch pvc and that yeilds about 550 to 600 gph