Q I know how to chlorinate my potable water system. However, what procedure do you recommend for purging the system of the chlorine? Should I simply purge with clear water, or use some additive to neutralize the chlorine?
– Joseph Murphy | Mountain Home, Idaho
A Chlorine used to kill waterborne germs in water disperses as a gas, which go out the tank vent. The speed at which this occurs varies with the temperature and concentration (the warmer ambient temperature, the faster it evaporates). So if you wait a few days, the smell of chlorine will be gone. However, if you are in a hurry and find the odor objectionable, or you used a high concentration to clean the system, simply drain the tank and refill it with fresh water and about a half a cup of baking soda for every 15 gallons of tank capacity.
– Ken Freund