How Does My Bubble Bar Work?

[dgwebster]

Ok a few years ago I bought a 30" long bubble bar airstone. 3/4 wrapped in plastic, it has connectors at either end. I have put the two outlets from my air pump into this, one outlet either end. Here comes the stupid question: am I doing it right? I still get patches of no bubbles

 

[Cazgar]

Air stones have a habit of not giving an even bubble flow
If your filter ripples the surface of the water enough, you don't need an air pump

 

[dgwebster]

The air pump is purely decorative with a surface breaking bonus

 

[KrazyKuhli]

Might be worth buying a new one, Ebay do a 24" bendy bubble wall for about £5-£10, these make a very fine mist if layed on top and bigger bubbles if buried.