How To Shock Your Pool

Chlorinating your pool three to five times the normal amount is what you call “shock your pool”. This keeps it clean, sanitized and removes ineffective chlorine amounts, kills bacteria and anything organic in the pool, and boosts the availability of effective chlorine. Every pool owner should know this basic maintenance step of shocking their pools.

Regular Pool Shock. Regular shock depends on how often the pool is used and how warm or cold it is. Monitor your pools chlorine test results, if it shows below the recommended ranges then its time to shock the pool. Shocking your pool once a month is highly recommended by experts. However for warmer pools like a spa it has to be twice a month. For pools which are frequently used of course it needs the same frequency in shocking it. Perhaps one a or as often as you could. Its best to conduct this after the sun has gone down, it prevents any reaction with the chemicals in the pool.


  1. Pool shock chemicals should be dissolved before adding the pool shock chemicals into the swimming pool. a) Fill a 5-gallon/19 liter (5.0 US gal) bucket of pool water b) Pour the granular pool shock into the bucket c) Warning: Never add water to a chemical; always add chemicals to water
  2. Stir the solution well.  Dissolve the pool shock chemicals thoroughly for about a minute.
  3. Adding the Pool Shock Chemicals
  4. Slowly pour the bucket of dissolved pool shock directly in front of a return line fitting while the filtration system is running.
  5. Make sure when you slowly pour the water from your bucket it is carried out into the pool and does not settle to the pool floor. Careful pouring prevents it getting into your skin, clothes and any other surfaces that may cause stain or injuries.

Water Refill When you are pouring and get near the bottom of the bucket of dissolved shock water (down to about 1/4 left in the bucket), fill the bucket back up with water. a) Stir the bucket of water again for one minute or more, to dissolve the residue. b) Continue pouring until emptied. c) For any residue on the pool floor, stir up with a cleaner.

Check before you swim Make sure that the chlorine content is at least 3ppm or less. Shock pools are also considered dangerous due to chemicals used.

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