wiper fluid problems

when i try to squirt my windshield, i get no fluid, the pump motor engages, ive checked the lines, they are ok...both sprayer units seem to be clogged...
anyone know if and how they can be unclogged? do i need to replace them?

use a needle in the squirter hole

ya needle in the hole...it's probley wax build up or some dirt in the tank

also hit it with some compressed air.

My windshield wiper dispenser just stopped working. No sound from the hydraulic. What are some things to check?