Check the thread on this page about having trouble getting crystals from AC.
There is a lot of info in there about this, I just posted a similar problem.
It goes into better detail in that thread, but you should just need to do a re-xtal
and finish your evap in the freezer to keep xtal formation
I live in Aruba with Elvis and Makaveli. We produce sick beats all day and make up silly stories on the internet. All of my stories are fictitious, must be all the second hand pot smoke from Tupac.