You could get her a water fountain like this one: http://www.vetventures.com/products-fountains-ss360.asp
Many cats prefer running water over still.
Also, feeding wet food instead of kibble will keep her better hydrated overall and possibly lessen her desire to drink.
"To close your eyes will not ease another's pain." ~ Chinese Proverb
“We must not refuse to see with our eyes what they must endure with their bodies.” ~ Gretchen Wyler