How to Shock a Pool ?

Superchlorinating your pool is shockingly easy once you get the hang of it. Also, this process works for any type of swimming pool including inground, above ground, and small inflatable or quick-set pools.

Important: Remember, if you’re using chlorinated pool shock, wait until the sun goes down before adding it.

1. Test The Pool Water

Do a quick round of pool water testing. The Free Chlorine level should be lower than the Total Chlorine level. This means your Combined Chlorine level is off and it’s time to shock your pool.

Also, check the pH and alkalinity levels. Make sure your pH level is between 7.4 – 7.6 and your alkalinity level is between 100 and 150 parts per million (ppm). This will balance the pool water chemistry so the shock treatment is more effective.

You can also check your calcium hardness level to make sure it’s in balance with the pH and Alkalinity. If your pool has a vinyl or fiberglass liner, the calcium hardness level should be between 175 parts per million (ppm) and 225 ppm. If you have a concrete or plaster pool, keep the level between 200 ppm and 275 ppm.

2. Pre-Dissolve Pool Shock

Carefully read the manufacturer’s instructions on your shock product. Most packages include charts or steps to help you calculate the amount of shock you need.

If you need to dissolve the shock first, fill your bucket roughly ¾ full with warm water. Add the shock to the bucket, and slowly stir until the chemical is as dissolved as possible. Work in one-pound increments.

3. Add Pool Shock To Water

If you do not need to dissolve your shock, count how many containers of shock you need. Add one bag at a time until you reach your calculated breakpoint.

At this point, make sure your pool pump and pool filter are running at full speed. This will help mix in the shock more effectively. Keep the system running for at least 8-12 hours after adding shock.

Slowly pour the shock while walking around your pool for more even distribution. (If your shock-water mix has solid particles at the bottom, dip the bucket into your pool water, carefully swish around to dissolve, and keep pouring.)

Wait to use your pool based on when you added the shock and the manufacturer’s recommendations. You don’t want to irritate your skin and eyes or bleach your swimsuit.