Here's the scenario.
I got a call the other day from a lady who had attended a performance at our world class performing arts center. Her first visit.
Being especially particular about her new car, she parked on the roof of the parking garage, far away from the other patron's vehicles. And about 20 feet from a water chiller tower, the top of which was about 15 feet higher than her car.
When she came to her car later, she noticed a dry film on it.
She didn't realize that the chiller was even there, but she did recall "a couple of structures" outside the garage.
Knowing what had happened, but playing dumb to buy time, I told her I'd check into it.
The chiller maintenance foreman told me to tell her just to wash her car, something she had already done. Not good enough for the picky lady.
Aside from vinegar to remove the calcium from the paint, which she is reluctant to use, does anybody have any "sure fire" water spot removal tricks?
Off topic, nonsense, flaming, demeaning and other dumb remarks also welcome. 
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