TDTA1181

Hey guys. I just replaced my TFC and charcoal filters on my Coral Life unit and now i can't get any flow from my blue discharge tube. This is the 1st time i've change the membrane on this unit. I remember when it was new i had a little prob like this then too. I ran the unit a/b 1.5 hrs last nt, and then switched the tubes and flushed the system for 30 min and still cannot get any flow. Pretty desperate for some water, guess I'm gonna have to go to grocery store and buy gallons of water, any brand suggestions? I tested Dasani last nt w/ my TDS and i know it won't work.