The general recommendation is to use 1 pound of cal hypo shock for every 10,000 gallons of pool water, and 10 ounces of sodium hypo with around 12.5% chlorine to sanitize your pool. Make sure the pool water is at its normal level.
65% - You will need 16g by weight or 15ml by volume of cal-hypo 65% to raise your pool chlorine levels by 1PPM per 10,000 liters of water. 75% - You will need 14g by weight or 13ml by volume of cal-hypo 73% to raise your pool chlorine levels by 1PPM per 10,000 liters of water.
Shock Dosage: 2 gallons of shock per 10,000 gallons of water. Source: Champion Liquid Pool Shock instructions.
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.
You'll need to first know the amount of water in your pool, give or take a few hundred gallons. If you aren't sure, take some measurements and consult an online pool volume calculator. 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.
To dose water in a tank with 5 mg/L chlorine use: 40 millilitres of liquid pool chlorine or 170 millilitres of bleach, for every 1000 litres in the tank. Always test the residual chlorine level with a chlorine test strip.
Aim to maintain a chlorine level of 3 to 5mg/l at all times. How frequently you add more chlorine will depend on your usage and bathing habits. It could be daily, every two to three days or weekly. For 1mg/l, add 2g per 1000 litres.
How much shock do I need to shock my pool? 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.
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.
To superchlorinate, add AT LEAST 2.5 ounces (5 tablespoons, 75 grams) of chlorine for every 100 gallons (400 litres) of spa water or part thereof. Adding more is fine and never a bad idea.
Superchlorination, also known as shocking or chlorine shocking, is the process of adding several times more chlorine to the pool than is normally needed so that the chlorine can "burn" through resistant compounds, chemicals, oils and strong types of algae.
Intex Pool Sanitizers
For the greatest protection against algae, bacteria, and cloudy water, Intex pools should maintain a chlorine level of 2.0-4.0 ppm at all times.
Regardless of how frequently or what system you use to add chlorine to the water, the chlorine level should stay between 1.0 and 3.0 parts per million (ppm) to maintain a healthy pool. Anything higher will make you to run the risk of red eyes and swimmers itch.
The amount of chlorine added depends on the size of your pool. An average pool of 50,000L will require 500g of shock chlorine treatment to achieve Super Chlorination. Broom the entirety of the pool. Run pool filtration for 24 hours (You will need turn your chlorinator off or down depending on make and model).
A good rule to remember is to use one bag of shock (1 gallon of liquid chlorine) per 10,000 gallons.
Before adding chlorine to the pool, test the current chlorine level with a pool chlorine test strip. Generally, you should maintain the pool's chlorine level between 1 and 3 ppm. Thus, if the chlorine level is already 1 ppm and you want it higher, add 0.00013 ounces per gallon to raise the chlorine by 1 ppm.
"Shocking” refers to the process of adding chlorine or non-chlorine pool chemicals to the water in order to raise the "free chlorine” level. The goal is to raise this level to a point where contaminants such as algae, chloramines and bacteria are destroyed.
What are safe levels of chlorine in drinking water? Chlorine levels up to 4 milligrams per liter (mg/L or 4 parts per million (ppm)) are considered safe in drinking water . At this level, harmful health effects are unlikely to occur.
As a rough general guide to adding chlorine we would say you need about 600g of granular chlorine for every 50,000l of swimming pool water added twice a week in a hot swimming season (600g is around two - three cups).
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.
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.