If washing machine fluid will not be spraying onto the windshield, money for clogged nozzles, kinked hoses
https://wiki-tonic.win/index.php/A_Beginner%27s_Guide_to_back_glass_replacement_Spartanburg_SC
If washer fluid is not spraying onto the windshield, check for clogged nozzles, kinked hoses, or an empty reservoir first.