windshield wiper sprayer clogged.

I guess mine are clogged because when I try to spray my windsheild wiper fluid, it just drags the dry wiper blade, no spray! :(
and yes, the tank is full of fluid.
What are these things called and can I buy new ones or do I have to use a needle or something to unclog my current ones?

Make sure the pump is working also. GENTLY blow a very small amount of compressed air into the lines should clear it up.

my car did this.

all i did was take the hose out, and blow on it, and it worked like a dream. (this wasnt an impala, so im not sure how the system works) but i would assume it would be the same way

Make sure the pump is working also. GENTLY blow a very small amount of compressed air into the lines should clear it up.

How do I make sure the pump is working? I'd guess it is, because I hear a little noise like it's trying to spray it.

I can't seem to figure out how to take the hoses apart to blow into them. I feel like I'm going to rip the rubber.

How do I make sure the pump is working? I'd guess it is, because I hear a little noise like it's trying to spray it.

I can't seem to figure out how to take the hoses apart to blow into them. I feel like I'm going to rip the rubber.

then it is mostlikely working.

the hose chould just pop off.

then it is mostlikely working.

the hose chould just pop off.

where, though? There are pieces where it's connected all through..from the pump to the wipers.