Rear Wiper Washer?

[sogdoc1]

I have been having trouble with the washer spray on the rear wiper. Had it in the shop two weeks ago and worked for 1 week and then started only spraying on the bottom third again. Anyone else having this problem. Like I said, had the shop fix it once and it happened again. I have an hour drive to the dealer and would like to know if anyone has an idea on the fix before I get there. They obviously didn't fix it right the first time. Thanks for any help.