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How to Add Javex to Pool Water

By Hollan Johnson ; Updated September 21, 2017

Chlorine is the most common way to sanitize a pool. Clorox Commercial Solutions™ Javex® 12 Bleach is a chlorine solution for pools and other industrial uses. Adding liquid chlorine to your pool requires a diaphragm pump or a peristaltic pump to put the chlorine into the pool’s plumbing, according to the website Pool Center. If your pool has a free chlorine reading (FAC) of zero, you need to add chlorine to the water.

Step 1

Go to the Utah Office of Epidemiology (see Resources) and input the size of your pool in gallons. Put “0” as the current FAC reading and a number between 1 and 3 as the desired free chlorine level. Check the "Liquid chlorine box" and click "Calculate." This will tell you how much Javex to add to your pool.

Step 2

Put on the goggles, rubber gloves and face mask. Open the diaphragm pump or peristaltic pump to your pool. Pour the required amount of liquid chlorine into the pump.

Step 3

Turn on the pump to add the Javex to your pool. This will also raise the level of chlorine for a brief period, notes Dan Hardy in his book "The Complete Pool Manual for Homeowners and Professionals."


Things You Will Need

  • Rubber glove
  • Goggles
  • Face mask
  • Chlorine test strip


  • Don’t swim in the pool until the chlorine level is below 5 parts per million. Test the water with a chlorine test strip from 30 minutes to an hour after adding Javex.

About the Author


Hollan Johnson is a freelance writer and contributing editor for many online publications. She has been writing professionally since 2008 and her interests are travel, gardening, sewing and Mac computers. Prior to freelance writing, Johnson taught English in Japan. She has a Bachelor of Arts in linguistics from the University of Las Vegas, Nevada.