Stop in for a cup of coffee

So the block heater change went perfect with the shop vac. Only took a few minutes to swap it. Just need to clean vac now.
Decided to flush my heater core in avalanche. New rad came with a drain. Hose fitting, nice! Nope, no coolant will come out. Pos. Coolant everywhere but in drain bucket. And dropping tools repeatedly gets frustrating. Ah, its done, just have to fill and see if it improved.