Help with cpr overflow box

[Sandman12]

Can someone please tell me how to get it started, thanks.

[Macbeth417]

You need to eliminate the air in the U tube and creat a siphon. An easy means of doing this would be to fill the back with water and add a hook up a ventri powerhead.

Here is diagram showing the nipple that you will attatch the verturi to.: http://www.cpraquatic.com/support/tech%20diagrams/diagram-cs150.gif

Here are CPR's directions:

http://www.cpraquatic.com/support/sup-cs150.html

Hope that helps,

-Erik :wink: