My daughter's Toyota Corolla hasn't had windshield wipers sprayers for over a year. Finally she brought the car up and let me figure out what was wrong. It turns out that a minor fender bender crushed the reservoir.
Checking the web showed no one local with a replacement other than the dealer ($250 ouchie). Web suppliers would cost $50 and take days.
I fiddled a bit and removed the pump from the old reservoir, then found a 1/2 gallon jug to act as a new reservoir.
She's happy now, and I'm happy that I didn't have to spend a bunch of money on her old car.