Originally Posted by StephenVA

This is too easy to resolve. All it takes is a little pressure and a eye for finding leaks. Hoses get brittle, squirters fail/clog, and connectors break. Welcome to 15 years of heat, cold weather, temp swings, ozone attacks, and previous owners/hacks. It also takes two people who know something about water and hoses (simple). FLUID HAS TO GO TO AND LEAK SOMEWHERE-as it will does not evaporate quickly.

Is your vehicle equipped with FRONT washer, Rear washer, and Headlamp Washers?

With the hood open, arm the under hood person with a flash light, the other person goes in and fires the FRONT windshield squirters, rear window squiters, and the headlamp squirters in that order. More than likely, you will find a leak in the hoses/squirters somewhere between the reservoir bucket and the hose end squirters. Based on your notes, if you car is equipped with headlamp washers, the check valves have gone bad and it should be peeing all over the place under the front bumper.

In my vehicle two of the three pumps were leaking internally, the seals were missing, and one of the squirters was clogged. Took way too long to resolve, so now I recommend replacing everything at one time.