Bubbles from the return

[poonaka]

I built a SM 100 and put it above my display. The return from the SM 100 goes directly to the display. Unfortunately I'm getting a ton of bubbles from it. Any tips on how to get rid of the bubbles?

[poonaka]

http://www.flickr.com/photos/39042809@N07/4838081724/sizes/l/in/set-72157623262205626/
http://www.flickr.com/photos/39042809@N07/4838081416/sizes/l/in/set-72157623262205626/

Images of the scrubber and return


EDIT: The inline images don't seem to work for me. Here's the links:

http://www.flickr.com/photos/39042809@N ... 262205626/ (http://www.flickr.com/photos/39042809@N07/4838081416/sizes/l/in/set-72157623262205626/)
http://www.flickr.com/photos/39042809@N ... 262205626/ (http://www.flickr.com/photos/39042809@N07/4838081724/sizes/l/in/set-72157623262205626/)

[SantaMonica]

Attache a "T" to the drain, where one half of the T goes up to the air, and the other half goes into the tank. Also, different flow amounts will make a big difference (including more flow). Play around with the T and flow amounts, and you should be able to find a no-bubble setting. Last resort is to use a larger bulkead.

[poonaka]

Does the half that goes up into the air need to be higher than the scrubber water line?

[SantaMonica]

No, just into the air.