How much bleach to shock a pool

How much bleach to shock a pool. Most pool stores do not recommend using simple chlorine as a bleaching agent. They want you to use their products to add bleach to the water.

Most pool specialty stores sell slow-dissolving chlorine tablets that, when combined with other ingredients, stabilize the chlorine so it releases more slowly, making it last longer.

Although this may seem like the easiest solution, stabilizing the bleach greatly reduces its effectiveness in killing microbes that need to be flushed out of your pool.

How much bleach to shock a pool
how much bleach to shock a pool

If you need to calculate how much bleach or Clorox you need to shock your pool, simply use 1/2 gallon of bleach per 10,000 gallons of water to raise the chlorine levels by 5 ppm.

The chemicals that are used in these tablets, such as dichloride, break down very slowly and with great difficulty, and, in general, you cannot control the amount that goes into the water.

Chlorine added via tablet

Therefore, the new chlorine added via tablet will attack the dichloride and stabilize immediately and will not attack the bacteria it is trying to kill.

The tablet effectively becomes useless and in a few weeks, the result will be a cloudy puddle.

Most likely, you will be stuck in a situation where the pool store sells you additional expensive products that will not solve your problem. This is a costly mistake.

As stated, the easiest way to ensure you have a clean and healthy pool is to use liquid bleach. The reason this is true is that it does not have stabilizers that make chlorine ineffective at disinfecting water.

You will have to make small daily adjustments to the water. This may sound like a lot, but a few minutes a day will result in a crystal clear pool and a steady, stabilized condition that is cheaper and easier to manage.

Liquid bleach to a poolLiquid Bleach To A Pool

Don’t forget, though, that when you add liquid bleach to a pool, you still have to add a small amount of stabilizer so that sunlight doesn’t wash away the bleach molecules immediately.

This step should not be too difficult as you are controlling the amount of stabilizer; it should be able to prevent over-stabilization.

You can add the stabilizer when the pool is first open, and then you probably won’t use it again for a few weeks or months.

Just remember to check your pool levels regularly, as it is your first defense in water sanitation.

Once your pool is stable, it will protect the amount of bleach you need while allowing unsterilized chlorine to do its job. This results in maximum chlorine efficiency and a beautiful pool.

By following these simple steps, you can be sure that you have a sparkling pool without breaking the bank.


Using Clorox, or other bleaches, in your pool is not just something you can do; it can help keep your pool balance under control. Just make sure you are using the correct formula and dosages.

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