Quandry

My car's washer fluid is not coming out when I pull the lever to clean the windshield. So I went to a nearby mechanic at the local gas station (yeah I know....what was I thinking) & he told me he thought he knew what the problem was. $95 dollars & 4 hours later, he couldn't find the problem since he ran out of time but told me to bring the car back. So I asked the question that begged to be asked, " . . . are you going to charge me for additional labor to continue trying to figure out the problem?" Yup. Now what's a girl to do? Do I cut my losses & go to the dealer; do I ignore the problem since it doesn't affect the running of my car; or do I take it back to Dufus the mechanic since he said he was close to isolating the problem? Hmmm.