One pound of shock treats up to 10,000 gallons of pool water. Also, keep the pool filter and pump running for at least 10 hours during and after you shock.
One bag of In The Swim cal hypo is always 1 pound, therefore, you need three bags to triple shock a 10,000-gallon swimming pool and get rid of algae. *For liquid chlorine or sodium hypochlorite with 12.5% chlorine, add 10 ounces for a 10,000-gallon pool to raise free chlorine (FC) by 1 ppm.
A simple ratio and a standard rule of thumb to follow when you shock your pool is to dissolve one pound of either calcium hypochlorite or sodium dichlor for every 10,000 gallons of pool water.
The most important factor though is the size of the pool. You'll need about 52-104 oz of liquid chlorine per 10,000 gallons of water. This amount should get the chlorine level to between 5 and 10 ppm.
Generally speaking, the dosage amount of pool shock is 1 lb. per 10,000 gallons, but consult the shock package label.
One pound of shock treats up to 10,000 gallons of pool water. Also, keep the pool filter and pump running for at least 10 hours during and after you shock.
Typically for granular shock, you'll need one pound for every 10,000 to 13,500 gallons of pool water.
To maintain a clear sparkling pool add 4 fluid ounces of Water Clarifier per 10,000 gallons of water weekly. If the pool is cloudy due to dust or to high hardness of the water, add 32 fluid ounces of Water Clarifier per 10,000 gallons of pool water.
Liquid chlorine and granular shock have the same active chemical that sanitizes your pool, what changes is the strength and the way you use it. Liquid chlorine is less costly, unstabilized and comes in liquid form. Granular shock is stabilized and comes in a solid form that dissolves in your pool.
Use the biguanide algaecide for your pool, measuring 16 ounces for every 10,000 gallons of water.
After Shocking Your Pool
It is safe to swim once your chlorine levels are around 5 ppm or after 24 hours. It is always best to test first!
Shock-chlorination is an essential and effective method of cleaning the pool. But you need to have the pump circulating the water for this to be effective.
Can you put too much shock in a pool? SKIMMER NOTES: It's unlikely but it could happen. It would take a lot of shock to really make the water unsafe for swimming. The best way to make sure you're safe to swim is to test your pool water and make sure free chlorine levels are between 1-4ppm for healthy swimming.
You cannot overshock a swimming pool or add too much. Adding too much shock or overshocking your pool will kill off algae. The negative of adding too much shock is it will upset the chemical balance of your pool.
1) After shock - Sometimes pool water looks cloudy right after you apply shock granules such as cal-hypo, or liquid shock, but rest assured it's only temporary. This could be due to change in water balance – meaning your pool water temporarily goes off balance when adding these products.
Oxidize (shock) weekly using 1 lbs. of Burn Out 35®, per 6,000 gallons of water. NOTE: Be sure to remove your cover before shocking and leave it off at least 8 hours.
It Should Not Be Done Together
This is because when you mix chlorine and algaecide together, it renders both of them useless. Hence, you should first shock the pool and wait for the chlorine levels to fall below 5 PPM.
Shock has a more intense chemical strength than the traditional chlorine sanitizers, and it also differs in how you should apply it to your swimming pool. Short answer: No. Chlorine sanitizers and shock are similar but different in strength.
High doses of chlorine, like pool shock, can cause temporary cloudiness as it kills contaminants. High levels of pH, alkalinity, and calcium hardness are more likely to cause cloudy water.
Alkalinity Balance, pH up, pH down, Calcium Balance, Water Stabilizer, and clarifier are all swim-safe chemicals. Wait about 20 minutes, and you are free to swim. We suggest adding algaecide, Super Erace, and shock at night, after everyone is out of the pool. It is safe to swim again the next day.
What happens when you add too much clarifier is that all the little particles clump together too much an end up as a colloidal suspension. When that happens, the whole thing turns cloudy. It'll clear but it will take a while. Run the filter 24/7 until is clears.
Here's a pool shock treatment chart to determine the amount of pool shock necessary to raise the chlorine level above the breakpoint threshold, which is usually around 30 ppm. For example, using the table above, a 20,000 gallon pool would require 7.8 lbs of Cal-Hypo to increase the levels by 30 ppm.
Often, it will look something like this. 12.5% Liquid Chlorine Pool Shock – Normal Dosage: 1 gallon of shock per 10,000 gallons of water. Shock Dosage: 2 gallons of shock per 10,000 gallons of water.
When you're shocking a pool, the goal is to raise the free chlorine level of the pool water to roughly 10 times the combined chlorine level.