Last year I ordered a 3 pack of Boeshield t-9. I have to re-apply about 3 times a year to prevent rusting. Anyway I finally used up the first can but find the other 2 won't spray. I press the tip and nothing. I took off the tip thinking it may just be clogged and pushed the tube against the wall and nothing. I can here the liquid in the can when I shake it so I know it's not empty. Any suggestions on how to salvage it? At worst I figure I can just puncture it and transfer it to a spray bottle but anyone know of a better way?