Tech Corner: Pool Shock 101

pool shock

Today, I’m going to give you the gift of pool knowledge. And just in time for the holidays! What you’re about to read will shock and awe you (see what I did there?). From ingredients, to dosage amounts, to side effects, to which product to purchase, you’ll be a pool shock master with this new found knowledge. Without further ado, I give you Pool Shock 101.When you shock your swimming pool, you’re essentially super chlorinating it. Shocking your pool helps to keep pool water fresh and sanitized by adding a large amount of pool chemicals to the water and raising the chlorine level for a short period of time. This helps to kill bacteria, anything organic, and removes ineffective chlorine amounts, while boosting the availability of chlorine that’s more effective. This is an important process in regular pool maintenance that all pool owners should be familiar with.We’d recommend shocking your pool at least once a month. If the water is warm or your shocking a spa or hot tub, twice a month should do the trick. Depending on your location and how often you use your pool, you might want to shock it more frequently. If you’re unsure of how often to shock your swimming pool or spa, please consult a professional or comment below.
What to Consider When Choosing a Shock:Chemical Ingredients
Pre-Mixing requirements
Percentage of Available Chlorine
Dosage Amounts
Side Effects
There are three types of pool shock that we recommend. Choosing between them will be determined on personal preference, so here’s an outline of each pool shock:
Di-Chlor Shock (PSW-CSY410):Chemical Ingredient: Sodium Dichloro-s-Triazinetrione
Pre-Mixing Requirement: None
Available Chlorine: 56% (not as high as Cal-Hypo Shock)
Raises Free Chlorine levels
1 lb per 12,000 gallons
Side Effects: Adds Cyanuric Acid to the pool – can reduce effectiveness of chlorine
Does not add calcium to the pool
Cal-Hypo Shock (PSW-CSY399-1):Chemical Ingredient: Calcium Hypochlorite
Pre-Mixing Requirement: Required – must pre-mix with water
Available Chlorine: 65% (higher than Di-Chlor)
Raises Free Chlorine levels
1 lb per 10,000 gallons
Side Effects:
Does not add Cyanuric Acid
Chlor-Free Shock (PSW-CSY439-1):Chemical Ingredient: Potassium Monopersulfate
Pre-Mixing Requirement: None
Available Chlorine: 0%
Will NOT raise Free Chlorine levels
1 lb per 10,000 gallons
Does not add Cyanuric Acid or Calcium
Note:Chlor-Free Shock is unlike other types of shock as it does not add any chlorine to the pool. This treatment is used to eliminate Combined Chlorine (dead chlorine) that is in the pool. When Free Chlorine attacks bacteria and is used up, it exists as Combined Chlorine. Proper filtration and chlorination helps reduce the Combined Chlorine, this shock can be used to supplement it’s removal.
I know this amount of information can be quite shocking, so don’t hesitate to contact us if you have any further questions or concerns.
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Dylan Lane
As a small boy my dream was to grow up and have a career where I would spend all day in the sun swimming until I shriveled up. Endless cannonballs, marco polo games and an abundance of cookie dough ice cream cones.....While sadly this didn't quite happen, I luckily get to do the next best thing! Sit by a computer and help others enjoy their swimming pools! Lucky me. Enjoy and hopefully I helped.