if you do like that it might no mix the bubbles with the water well.the bubble will then just go strait to the surface.
you need to add some container that prevents the bubbles from escaping to the surface.
it doesnt have to face downwards.it all depends on your container.
http://www.youtube.com/watch?v=0fmVseuDavY
this one might explain it the best
http://www.youtube.com/watch?v=-4cTyXU3pT0&feature=related
you need to add some container that prevents the bubbles from escaping to the surface.
it doesnt have to face downwards.it all depends on your container.
http://www.youtube.com/watch?v=0fmVseuDavY
this one might explain it the best
http://www.youtube.com/watch?v=-4cTyXU3pT0&feature=related