Galacticraft mod errors

[William Bryant]

Hey... I'm using tekkit 1.5.1 for Mac and when I get to the moon and try to build the air bubble thing... I watched all the vids I could find and it woes fine for them... I place the oxygen collector then attach the oxygen bubble distributor connecting it with oxygen pipes and the collector fills up but no bubble and yes I'm hooking it up on the right side but when I right click the distributor it says not enough power... Why?

Plz help

[TokiWartooth]

because you didn't set up a power source?