Help find U tube thread

[Corwyn]

Hi,

I know there was a thread on making an overflow with pvc pipe.

I can't find it can someone remind me what it's called?

Corwyn

 

[Daragon]

Are you talking about a durso pipe or the actual overflow?

 

[Corwyn]

No, not the durso. This is for non drilled tanks using just PVC and elbows without a box, going over the top of the tank. It's a double U tube that will allow you to maintain a syphon if you lose power.


C

 

[Daragon]

I don't know if this helps but it may be a start...

http://www.bostonreefers.org/forums/showthread.php?t=10212&highlight=project