$15 PVC Overflow

[ddenham]

woah ...looks like one of those Escher prints that make me dizzy

Actually I guess it would work...

 

[Inflames]

If C,D,E and J,K,L are trying to emulate a U tube then why would you need anything after C and L? You dont need the extra elbows and pvc, it will draw water in normally.

 

[Nolte919]

If C,D,E and J,K,L are trying to emulate a U tube then why would you need anything after C and L? You dont need the extra elbows and pvc, it will draw water in normally.

To skim the surface of the water instead of drawing it from the bottom of the tank.

 

[tboned]

oh your good

 

[tboned]

due to the fact that the ice storm around christmas killed every tank I own

here is what it looks like on a tank

 

[tboned]

I aslo think (but not for sure) if you make the whole overflow smaller (not pipe size - Just shorter) it will increase the flow rate

 

[Simms142]

Very interesting. Well thought out though and looks like it would definitely work. Any reason you went with two drains instead of one bigger one (for linear overflow space)

 

[speakeraddict]

now, you need to cut teeth into it for a strainer and paint it purple with primer to help hide it and it would be super sweet.

If the tests on the spare 10 gallon work well, I will use it on the new 65 instead of drilling it.

speakeraddict

 

[tboned]

stabilty on the back and incase one broke siphon you still have the other
and it give you more are to skim the surface

 

[tboned]

now, you need to cut teeth into it for a strainer and paint it purple with primer to help hide it and it would be super sweet.

If the tests on the spare 10 gallon work well, I will use it on the new 65 instead of drilling it.

speakeraddict

I thuoght about rasing A & N above water level and cutting slits in them and capping them so that nothing could get in except water

When it works for you take some pictures for everybody Please

 

[speakeraddict]

I shall.

I will take pics after I paint them with primer so they can see the finished product. I think I will start out with the teeth so there are no surprises after I cut them.

speakeraddict

 

[Inflames]

To skim the surface of the water instead of drawing it from the bottom of the tank.

Doesnt look like its setup for that. As soon as the water level drops that thing is useless.

 

[Aquayne_wv]

pvc overflow

pvc overflow

I have made these for some time. They are great when you cannot drill. This design is redundent. You only need one pipe and the cap must be removed or drillied or it will empy when the pump shuts down, just make it bigger. I used these once when I built a central system for a shop and the tanks were already full. It is a great answer when drilling is too risky.

Demovid on Aquaboards

 

[sde219]

Inflames:

Why and how would the water level drop? It's gonna skim the surface as much as the return pumps flow allows it to.
The water level will only drop in the sump not in a main display tank.

z_rivers:

How exactly would that explain other HOB overflows working? This design while probably overly complicated works fine.

 

[Rockker]

Looks perfect to me.

tboned, wonderful idea.

See ya this weekend.

Rockker

 

[gath2]

Add this to the confusion

Add this to the confusion

I have been following this thread for awhile and it would fit nicely on the top of your overflow.

Another overflow

 

[werew]

What do you think the maximum drain rate is using 1" and 1.25" ? 500-600gph?

I might make one for 300-400'ish gph for my 29gal, size the PVC used down to .75" and 1"

 

[tboned]

my design should give you like 1000-1200 GPH

 

[tboned]

Pipe size ...... Gallons Per Hour ........... Gallons Per Minute
Ã"šÃ‚½" ........................ 480 ................................... 8
Ã"šÃ‚¾" ........................ 900 .................................. 15
1" ........................ 1,500 ................................ 25
1Ã"šÃ‚¼" ..................... 2,700 ................................ 45
1Ã"šÃ‚½" ..................... 3,600 ................................ 60
2" ........................ 5,400 ................................ 90
3" ....................... 13,500 .............................. 225
4" ....................... 21,000 .............................. 350
6" ....................... 42,000 .............................. 700

 

[tboned]

Re: Add this to the confusion

Re: Add this to the confusion

I have been following this thread for awhile and it would fit nicely on the top of your overflow.

Another overflow

I like that Idea