"Make lemonade with the water you plan to drink. You'll never know about the Chlorine."
I've never tried it, but I read somewhere that if ya blow air through the water (like with a straw) it drives off the free chlorine and cuts the taste.
Boiling the chlorinated -bleached - water does work, though.
YMMV
Maybe this will help:
Boiling is the most reliable method for killing microbes and parasites. Bring water to a rolling boil and keep it simmering for at least several minutes. Add one minute of boiling to the initial 10 minutes for every 1,000 feet above sea level. Cover the pot to shorten boiling time and conserve fuel.
When boiling is not practical, chemical disinfection should be used. Common household bleach contains a chlorine compound that will disinfect water. The treated water should be mixed thoroughly and allowed to stand, preferably covered, for 30 minutes.
Most emergency experts and health officials suggest a mixture of 8 drops of bleach to a gallon of generally clear water for best results. Based on environment or cloudiness of the water, you may want to change the quantity of drops to 16 per gallon of cloudy or murky water.
The water should have a slight chlorine odor; if not, repeat the dosage and allow the water to stand for an additional 15 minutes.
If the treated water has too strong a chlorine taste, it can be made more pleasing by allowing the water to stand exposed to the air for a few hours
or by pouring it from one clean container to another several times.
http://www.csgnetwork.com/h2oemergencypurifycalc.html